Stochastic sampling error (i.e., genetic drift) causes populations to lose genetic diversity due to chance.
Genetic drift is a result of sampling error because individuals are randomly chosen when a population is sampled. A random selection is one in which each member of the population has an equal chance of being chosen.
The random change in allele frequencies caused by stochastic sampling of alleles from the previous generation is known as genetic drift (independent of demographic stochasticity).
The variety of various inherited features within a species is referred to as genetic diversity. There would be many people with a wide range of diverse traits in a species with significant genetic diversity. For a population to adapt to changing surroundings, genetic variety is essential.
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HELP PLEASE
A population of coyotes lives in a small valley. The coyotes prey mainly on rabbits. The rabbits eat meadow plants that grow in the valley
Each year there are about the same number of coyotes, rabbits, and plants in the valley. One year a drought kills about half of the meadow
plants.
What effect will the drought have on the coyote population in the valley?
O A It will decrease because the rabbits will decrease.
B. It will stay the same because only the plants are affected.
O c. It will increase because there will be more space for us
D. It will decrease because there will be fewer plants for them.
The coyote population in the valley will decrease because the rabbits will decrease.
An ecosystem, also known as an ecological system, is made up of all the organisms and the physical setting in which they live. The nutrition cycles and energy flows connect these biotic and abiotic elements. Photosynthesis is how energy enters the system and is absorbed by plant tissue. Animals play a significant part in the transfer of materials and energy through the system by eating plants and one another.
They also have an impact on the biomass levels of the microbial and plant communities. In addition to facilitating nutrient cycling by transforming nutrients held in dead biomass back into a form that can be easily utilized by plants and microorganisms, decomposers also release carbon into the atmosphere through the breakdown of dead organic matter.
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Scientists develop a good experimental design that contains both a(n) ____________ group in which the experimental variable is altered, and a control group in which the experimental variable is not altered.
Scientists develop a good experimental design that contains both a(n) experimental group in which the experimental variable is altered, and control group in which the experimental variable is not altered.
The scientific approach starts with the observation of natural occurrences or happenings. Inductive reasoning is used by scientists to incorporate separate information into a model probable explanation, or hypothesis.
The experimental group represents the effect of the variable in question. For example, to assess the efficacy of a new immunization, 50 volunteers are recruited and divided into two groups. One group will act as the control group, and the other as the experimental group.
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When leaves change colors in the fall which colors of light is reflected and not absorbed?
pigments that give leaves their red, purple, and blue colors, are produced by the plant in response to certain environmental stressors such as drought, high sunlight, and low temperatures.
When leaves change colors in the fall, the levels of chlorophyll, the pigment that gives leaves their green color, decrease and the chlorophyll breaks down. This causes the green color of leaves to fade, revealing other pigments that have been present in the leaf all along. As the chlorophyll breaks down, other pigments become more visible, reflecting different colors of light. Carotenoids, which are pigments that give leaves their yellow and orange colors, are always present in leaves, but as the chlorophyll breaks down these pigments become more visible and reflected.
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What enable bacteria to survive in a wide variety of habitats?
Bacteria are single-celled organisms having membrane-attached cell organelles instead of a true nucleus. The reason why bacteria may survive in harsh settings is because:
energy-generating enzymes
Endospores
tissue wall
Cyst
Bacteria have the following characteristics:
The primary property of the bacteria is their ability to develop a cyst, which protects them from harmful environmental elements.
For instance, the prokaryotic organism can survive in both hypertonic and hypotonic conditions because to its cell wall.
The bacteria also make endospores, which let them tolerate extremely high temperatures.
The bacteria create cold shock proteins that help them withstand freezing temperatures.
In order for bacteria to survive in harsh settings, protein synthesis, cyst development, and endospores are crucial.
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the leaf-like structure that protects a developing flower bud until it opens as a fully formed flower is called a what
Sepals is a leaf-like structure that protects a developing flower bud until it opens as a fully formed flower.
What is a Sepal?
A sepal is a part of the flower that is typically located at the base of the petals. Sepals form a protective layer around the bud and are usually green in color. They are typically small and leaf-like and provide support and protection for the flower. Sepals can also be used to identify different species of flowers.
They are usually found in pairs or in a whorl of four or five, and they help to protect the delicate petals and reproductive organs at the center of the flower. They also support the flower and keep it upright. Sepals open up as the flower blooms, allowing the petals to open and the reproductive organs to be exposed.
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Only about _____ of genes are different from one person to the next. Those that are different are called _____.
The correct answer is A; 1%, alleles, A gene mutation is a change that occurs in one or more genes (myoo-TAY-shun). Certain genetic mutations can cause genetic disorders or illnesses.
The human genome is substantially same in all individuals. There are, however, variations across the genome. This genetic variety accounts for around 0.001% of each individual's DNA and results in differences in appearance and health. People who are closely related share more DNA.
There are genes that are dominant and recessive. The most common interaction between alleles is a dominant/recessive relationship. When one allele of a gene effectively overrules the other (recessive) allele, the dominant allele is said to exist. Correlations between dominant and recessive genes can be seen in eye color and blood type.
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Full Question ;
Only about _____ of genes are different from one person to the next. Those that are different are called _____.
A) 1%, alleles
B) 20%, alleles
C) 1%, traits
D) 20%, traits
Reduction of fluid losses at the kidneys due to the retention of Na+ is the action of
A) antidiuretic hormone.
B) calcitonin.
C) aldosterone.
D) cortisone.
E) oxytocin.
Reduction of fluid losses at the kidneys due to the retention of Na+ is the action of a hormone called aldosterone. So option c is correct.
Aldosterone is a steroid hormone produced by the adrenal glands that plays a crucial role in regulating electrolyte balance in the body.Aldosterone works by stimulating the kidneys to reabsorb more sodium ions (Na+) and water, and to excrete more potassium ions (K+). This results in an increase in blood volume and blood pressure, as well as a decrease in urine output.
By retaining more sodium ions, aldosterone helps to maintain the body's fluid balance and prevent dehydration.Aldosterone secretion is regulated by the renin-angiotensin-aldosterone system (RAAS), which is a complex feedback mechanism that responds to changes in blood pressure and electrolyte levels. When blood pressure drops or when the body loses too much sodium, the kidneys secrete the enzyme renin, which converts angiotensinogen to angiotensin I. Angiotensin I is then converted to angiotensin II by the enzyme ACE, which stimulates the release of aldosterone.
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4. What is the trait that will be expressed if it is present?
purebred
recessive
dominant
hybrid
Answer:
c
Explanation:
all dominant traits show hybrid and purebred are definetly not it
What claim can you make about whether any of the individuals in one population have arm lengths similar to the individuals in the other population?
Subject is UCSD vs Laguna Mt juncos
Due of the larger range in the blue population's largest tower's height than in the yellow population.
They don't have to worry about the planet providing for them because they have a stable climate, which allows them to have children virtually all year round, and human-provided resources. Your traits, which are features or characteristics that you inherit from your parents, are determined by the information carried by your genes (say: trates). In the human body, each cell has between 25,000 and 35,000 genes. A common garden experiment reveals that individuals in the UCSD population had shorter wings and tails than those in the adjacent mountains, and the physical variations are genetically based.
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INTRO TO CELL RESPIRATION OVERVIEW POGIL: All cells need energy all the time, and their primary source of energy is ATP. The methods cells use to make ATP vary depending on the availability of oxygen and their biological make-up. In many cases the cells are in an oxygen-rich environment. For example, as you sit and read this sentence, you are breathing in oxygen, which is then carried throughout your body by red blood cells. But, some cells grow in environments without oxygen (yeast in wine-making or the bacteria that cause botulism in canned food), and occasionally animal cells must function without sufficient oxygen (as in running sprints). In this activity you will begin to look at the aerobic and anaerobic processes that are used by all organisms to produce ATP. Which statement is NOT true based on this intro
The products formed as a result of cellular respiration are ATP, water and carbon dioxide.
The cells require energy to perform all their cellular functions. The source of energy for them is ATP which is adenosine triphosphate. The amount of ATP which is produced by a cell depends on its requirement and also on the amount of oxygen that is available.
Depending on whether a particular organism requires oxygen or not, they can be classified as aerobic and anaerobic. Aerobic organisms are the ones which require oxygen whereas anaerobic organisms do not require oxygen. The reaction for cellular respiration can be represented as:
C₆H₁₂O₆ + 6O₂ → 6CO₂ + 6H₂O + ATP
Carbon dioxide, water and ATP are formed as products in this reaction.
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Please help i need the answers asap
The independent variable is temperature
The dependent variable is height of the plants
Three constant variables are; sunlight, nutrients and humidity
A line graph is more suitable since we have two variables.
What is the variable?We know that the term variable has to do with the kind of value that changes from time to time. In an experiment, there are three main kinds of variables;
1) the independent variable - The value of this would be altered throughout the experiment
2) The dependent variable - The value of this would only be changed when we change the dependent variable
3) The controlled variable - This would remain the same throughout the experiment
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What is the genotype of individual II 2?
When two alleles in a genotype are the same, the genotype is said to be homozygous; when the two alleles are different, the genotype is said to be heterozygous. Genotyping is the term for the process of identifying a genotype.
A person's genotype is made up of all the alleles they have for a certain gene. The sum of a person's attributes or observable characteristics is their phenotype. The phenotype of an organism is only impacted by its genotype, which is directly inherited from its parents. It is possible for a child to have genotype "ii" because parents with type B will have either BB or Bi. A father with type "O" can have a child with genotype "ii" because type "O" is determined by allele I.
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what system works with the respiratory system to circulate blood and oxygen throughout the body
The respiratory system is supported by the circulatory system, which carries blood to and from the lungs. The circulatory system is made up of the heart and blood arteries.
The circulatory system assists in moving nutrients and oxygen from the lungs to the body's tissues and organs. Additionally, it aids in the removal of trash and carbon dioxide. Blood and oxygen are moved throughout the body through the circulatory system and respiratory system. The respiratory system, which includes the lungs and airways, brings oxygen into the body and expels carbon dioxide through breathing, whereas the cardiovascular system, which includes the heart and blood vessels, pumps oxygen-rich blood from the lungs to the respiratory system rest of the body through the circulatory system.
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1. Which organisms are primary producers in this food web? How do you know?
2. Which organisms are primary consumers in this food web? How do you know?
3. Which organisms are apex predators in this food web? How do you know?
4. Are there any omnivores in this food web? How do you know?
Answer:
corals is the primary producers.planktonsharkTreatment of an abscess often requires that it be surgically drained because ______.
O the wall of the abscess prevents proper blood flow into the pus
O the wall of the abscess prevents proper elimination of wastes from the enclosed pus
O the wall of the abscess prevents neutrophils from entering the pus and attacking the pathogens
O the wall of the abscess prevents macrophages from differentiating into monocytes in the pus
Because the abscess wall obstructs adequate blood flow through into pus, management of an abscess frequently necessitates surgical drainage of the abscess.
Which of the below is not an anti-infection chemical barrier?Instead of acting as a barrier, macrophages target pathogens once they have already entered the body. Physical barriers include mucus and epithelial tissue, whereas chemical barriers include saliva and urine.
What type of cell plays the most important role in immunity?The most significant of the three antigen-presenting cells, dendritic cells play a crucial role in the beginning of innate and adaptive immunity (see Section 1-6). Macrophages can directly mediate innate immunity and play a critical role in the effector component of the adaptive immunological response.
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Needs help ASAP
Which of the following is an example of genetic engineering?
A. A string of three bases within an RNA molecule codes for a specific amino acid
B. A string of amino acids bonds together to form a protein that controls a trait
C. A bacterial cell produces human insulin because human DNA has been added to the bacterial DNA
D. And the nucleus of a human cell DNA strands separate and are used as a template for new RNA molecules
A bacterial cell produces human insulin because human DNA has been added to the bacterial DNA is an example of genetic engineering.
What do you mean by genetic engineering?Genetic engineering, also called genetic modification or genetic manipulation, is the modification and manipulation of an organism's genes using technology.
For example, genetic engineering may involve adding a gene from one species to an organism from a different species to produce a desired trait. Used in research and industry, genetic engineering has been applied to the production of cancer therapies.
Genetic engineering is accomplished in three basic steps. These are (1) The isolation of DNA fragments from a donor organism; (2) The insertion of an isolated donor DNA fragment into a vector genome and (3) The growth of a recombinant vector in an appropriate host.
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Part A According to data presented in this chapter, which of the following statements is correct? Species are created independently of each other and do not change over time. The traits of populations become more perfect over time O Individuals -not populations -change when natural selection occurs. O When individuals change in response to challenges from the environment, their altered traits are not passed on to offspring. SubmitR Request Answer Provide Feedback
The correct statement is c)Populations - not individuals - change when natural selection occurs..So,correct option is c.
Natural Selection follows up on a life form's aggregate, or noticeable elements. Aggregate is many times to a great extent a result of genotype (the alleles, or quality forms, the living being conveys). At the point when an aggregate created by specific alleles helps organic entities make due and duplicate better compared to their friends, normal determination can build the recurrence of the supportive alleles starting with one age then onto the next - that is, it can cause microevolution.
Some important steps involved in evolution of natural selection
Natural Selection can cause microevolution (change in allele frequencies), with wellness expanding alleles turning out to be more normal in the populace.Wellness is a proportion of conceptive achievement (the number of posterity an organic entity leaves in the future, comparative with others in the gathering).Natural Selection can follow up not entirely settled by elective alleles of a solitary quality, or on polygenic (still up in the air by numerous qualities).Natural Selection not entirely settled by different qualities might appear as balancing out choice, directional determination, or troublesome choice.Hence,correct choice is c.
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(Complete question) is:
According to data presented in this chapter, which one of the following statements is correct?
a. When individuals change in response to challenges from the environment, their altered traits are passed on to offspring.
b. Species are created independently of each other and do not change over time.
c. Populations - not individuals - change when natural selection occurs.
d. The traits of populations become more perfect over time.
What is the controlled variable of the experiment, “are fingerprints inherited?”
The controlled variable of the experiment, “are fingerprints inherited?” may be the genotype of a given individual who is not a parent of target groups.
What is a controlled variable in an experiment?A controlled variable in an experiment can be defined as any condition during the experimental procedure that stays constant in order to make a plausible comparison with the members of the target groups and collect data.
Therefore, with this data, we can see that a controlled variable in an experiment is any condition that remains constant along with the experiment.
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The controlled variable in the experiment "Are fingerprints inherited?" refers to the factors or conditions that are kept constant throughout the experiment. In this case, the controlled variables could include:
1. Age and gender of the participants: To ensure consistency and eliminate any potential influences, it is important to control for the age and gender of the individuals participating in the experiment. Fingerprint patterns may change with age, so controlling for this factor helps isolate the inheritance aspect.2. Environmental conditions: The experiment should be conducted under controlled environmental conditions to minimize any external factors that could affect fingerprint patterns. This includes temperature, humidity, and any other factors that could potentially alter the fingerprints.3. Method of fingerprint collection: The technique used to collect fingerprints should be consistent for all participants. It should be standardized and applied uniformly to ensure accurate comparison and analysis of the fingerprints.4. Analysis method: The method used to analyze the fingerprints should also be consistent across all participants. This includes the tools or software used, the criteria for categorizing and comparing fingerprints, and the overall approach to data analysis.By controlling these variables, researchers can focus on studying the specific aspect of inheritance in fingerprints, without the interference of other potential factors.
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if someone made a scale model, and they hade 1 cm for every 100,000 kilometers how many centimeters would 58 million kilometers be?
The statistic must typically be multiplied by a constant scale factor in order to be a reliable estimate of the scale parameter. This scale factor is defined as the theoretical value of the result of dividing the necessary scale parameter by the statistic's asymptotic value.
What are the parameter for scale model?A map's scale may be depicted graphically (a graphic scale), but it is typically expressed as a ratio or fraction, such as 1/10,000 or 1:10,000. With these “representative fraction” scales, one inch or one centimetre on the map corresponds to 10,000 of the same units on the ground.
Therefore, We are all aware that 1 centimetre is equivalent to 1/100000 kilometres. Hence, 1 cm = 0.00001 km As a result, multiply the number of cm by 0.00001 to convert from cm to km. In other words, multiply the cm value by 100,000 to get the km value.
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What are the 3 types of point mutations and their effects?
The three types of point mutations are: addition, deletion and substitution. The effect of these mutations is that the gene sequence is altered that results in variation in gene expression.
Point mutations are the type of mutations where the change in the genetic sequence is due to alteration of a single nucleotide. This change can be the addition, deletion or substitution of the nucleotide. This can however change the entire sequence for the gene expression.
Gene expression is defined as the process by which the genetic information is converted into a functional form that can produce the results inside the body. These processes are transcription and translation.
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How the respiratory system and circulatory system work together to supply oxygen and remove carbon dioxide from the cells?
The role of the respiratory system is to help in gaseous exchange and the role of the circulatory system is to supply oxygen and remove carbon dioxide from the tissue.
The respiratory system aids in the inhalation of oxygen and the exhalation of carbon dioxide. Additionally, the circulatory system is the system that aids in removing carbon dioxide from tissues by way of the lungs and supplying oxygen from the lungs to tissues. This method of oxygen supply and carbon dioxide waste removal is made possible by both of these processes.
The oxygen that is inhaled first travels to the lungs where it is exchanged with the blood that carries the waste (CO₂) from the tissue via the heart. From the heart, the oxygen in the oxygenated blood is delivered to the tissues. And the deoxygenated blood tissue carries the waste products from the tissue.
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How do musical embellishments help enhance a piece of music?
Musical embellishments are decorative or ornamental elements that are added to a musical piece to enhance its emotional expression or to make it more interesting or appealing. There are many different types of musical embellishments, including trills, turns, mordents, and vibrato, and they can be used to add variety and interest to a piece of music.
Embellishments can help to bring out the melody or theme of a piece of music, adding emphasis and expression to certain notes or phrases. They can also help to add a sense of movement or flow to the music, creating a sense of momentum or momentum. Additionally, embellishments can help to create a sense of drama or tension, particularly when used in a strategic or expressive way. Overall, embellishments can help to enrich the emotional content of a piece of music and make it more engaging and enjoyable for the listener.
What weather phenomena are you likely to see in California during El Niño. These phenomena result from changes in temperature and humidity values under the influence of El Niño. CHOOSE 3
DROUGHT RAIN
FLOODS T ORNADO
FOG HURRICANE
El Niño is a meteorological event that affects clime at a global level, altering natural regimens. In California, El Niño can cause RAIN, FLOODS and HURRICANE.
What is El Niño?The El Nino Southern Oscillation -ENSO- is a weather phenomenon produced due to a complex system of climatic oscillations between the ocean and the atmosphere.
ENSO phenomenon is dominant in the global climate system. In the Nothern Hemisphere, ENSO provokes changes in general extratropical circulation, contributing to some different situations in weather during winter, including severe precipitations and cooler temperatures in the southeast USA, north of Mexico, Gulf of Mexico, Strait of Florida, and western Cuba.
In California, El Niño can cause RAIN, FLOODS and HURRICANE.
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While both the endocrine and nervous systems are involved with communication, they differ in their mechanisms. What is one difference between hormones of the endocrine system and neurotransmitters of the nervous system
Answer:
Hormones are released by the glands in the endocrine system and are transmitted into the bloodstream..while neurotransmitters are released by the presynaptic terminal in the synapse and are transmitted across the synaptic cleft....
I hope this helps
What is the chance in percentage (%) that the child being homozygous for the trait?
A homozygous recessive (AA) kid has a 25% chance of being unaffected, a heterozygous (Aa) carrier child has a 50% probability, and a homozygous homozygous (AA) child has a 25% chance.
A genetic disorder or characteristic can be transferred from parent to kid via autosomal dominant inheritance. The genetic disease can be brought on by one copy of a mutant (changed) gene from one parent. A mutant gene-carrying parent has a 50% chance of passing it on to their kids.
Four of the 16 potential gamete pairings from a SsYy x SsYy cross are viable. When the genes (also known as alleles) that regulate how a feature develops are paired in exactly the same ways, the trait is said to be homozygous. Being heterozygous for a trait means having several alleles for that trait. A homozygous characteristic will always show itself in the same way.
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How do vegetarians ensure proper nutrition?
Vegetarians ensure proper nutrition by adding a variety of healthy plant-based foods, such as whole fruits and vegetables, legumes and nuts, and whole grains.
Vegetarians should obtain protein from a variety of plant sources, including legumes, soy products, grains, nuts and seeds. Eat a variety of fruit and vegetables every day.
Vegetarians can ensure of having meals Based on starchy carbohydrates. They can use variety of dairy products that can include soy and other milk products which can fulfil their calcium requirement. For protein they can include beans and pulses . For fats unsaturated oils and various cheese spreads can also be included . Eating high sugar and salt should always be avoided .
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Notch is a receptor protein displayed on the surface of certain cells in developing fruit fly embryos. Notch’s ligand is a membrane-bound protein called Delta that is displayed on the surface of adjacent cells. When Notch is activated by its ligand, the intracellular tail of the Notch protein becomes separated from the rest of the protein. This allows the intracellular tail to move to the cell’s nucleus and alter the expression of specific genes.
Which of the following statements best explains Delta’s role in regulating cell communication through the Notch signaling pathway?
A. Delta transmits a chemical signal to all the cells of a developing embryo.
B. Delta allows the cells of a developing embryo to communicate without making direct contact.
C. Delta restricts cell communication to short distances within a developing embryo.
D. Delta determines which cells in a developing embryo express the gene that encodes the Notch protein.
If Delta is displayed on the surface of adjacent cells, and when Notch is activated by its ligand, the intracellular tail of the Notch protein becomes separated from the rest of the protein and allows the intracellular tail to move to the cell’s nucleus and alter the expression of specific genes, then C. Delta restricts cell communication to short distances within a developing embryo best explains Delta’s role in regulating cell communication through the Notch signaling pathway.
What is cell communication in a signaling pathway?The expression cell communication in a signaling pathway makes reference to the molecular cascade activated by the interaction of biomolecules synthesized by two or more cells
Therefore, with this data, we can see that cell communication in a signaling pathway depends on the biomolecules of the cells.
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Which anatomical feature would you expect to find in the fossil remains of a nocturnal species?
a. short fingers and toes
b. pointy teeth
c. long legs
d. large eye orbits
The anatomical feature would you expect to find in the fossil remains of a nocturnal species is large eye orbits.
What anatomical characteristics might you anticipate to see in the fossilized remains of a nocturnal species?Comparatively larger eyes and bony orbits are characteristics of nocturnal (active at night) species as opposed to diurnal species. The bony orbits of primate skulls exhibit significant structural variations in addition to size variations.
Nocturnals are animals that are active at night. These animals possess a unique trait called night vision that enables them to see in the dark! Animals use their night vision to locate food or elude predators. A few nocturnal animals also have keen hearing or smell senses.
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Categorize all the components involved in photosynthesis as either matter or energy!
Energy and matter are also produced during photosynthesis. Chemical energy in the form of glucose and matter in the form of oxygen gas is produced during photosynthesis.
The process by which plants convert carbon dioxide, water, and sunshine into oxygen and sugar-based energy is known as photosynthesis. The four stages of photosynthesis include light absorption, electron transfer, ATP production, and carbon fixation. The main purpose of photosynthesis is to transform solar energy into chemical energy, which is then stored for later use. This mechanism primarily provides energy to the planet's life systems. By the norms of human engineering, it is not particularly effective, but it gets the job done.
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How can a cell increase surface area without increasing the volume?
Cells can increase their surface area by folding the plasma membrane. Total cell surface area should increase when a cell divides into two daughter cells.
There are two illustration of membrane supply that support cell division:
(1) unfolding of small surface membrane reservoirs such as microvilli and folds, and (2) exocytosis of intracellular vesicles.
As the cell radius increases, the surface area increases as the radius squared, but the volume increases as the radius cubed (much faster).
Increasing the surface area of the cell increases the amount of material that diffuses into the cell. As volume and surface area increase, volume increases more rapidly, so for every doubling of cell volume, the surface area available for uptake is halved.
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