Part of an important cellular process involving a DNA strand is modeled below.
What is the purpose of this cellular process?
Answer: Cellular respiration is the process by which cells in plants and animals break down sugar and turn it into energy, which is then used to perform work at the cellular level.
Explanation: In simpler words, it provides energy for the cell to do basic needs.
A scientist was given some cells in a test tube .When she did karyotyping studies on these cells, she found that they each consisted of 23 chromosomes with only one sex chromosome in each. Half of these cells had one" X" chromosome in each of the cells and the other half had one"Y" chromosome in each of the cells. From this information, which would be a reasonable conclusion?
a.
These could be cells taken from any part of the human body
b.
These are all gametes
c.
There is no way to tell what type of cells they are.
Answer:
These could be cells taken from any part of the human body
why in an ovary, germ cells undergo oogenesis (enter meiosis) during fetal life (before birth). but in a testis, germ cells do not undergo spermatogenesis (do not enter meiosis) until puberty?
If a diploid number is 42, then the haploid number is…
Answer:
21
Explanation:
diploid number will be double the haploid number
Answer:
21
Explanation:
For the organism in this example the diploid is 42 making the haploid would be half of that or 21 chromosomes.
Happy learning! Brainliest if this answer helped!
A scientist observes an object approximately 11 km in length with an elliptical orbit around the Sun. The object is made of dust, ice, and rocky materials and passes Earth every 75 years.
Answer:
Comet
Explanation:
Comet is made up of dust,ice and rocky materials and passes every 75 years
You are studying aging in budding yeast. With each division, mother yeast cells bud and divide, forming a daughter that has renewed replicative potential (in other words, it is rejuvenated). The mother, however, does not show a renewed replicative potential. You find that the mother cell dies after a few more divisions, but the daughter cell dies after it divides 30 or more times. What would you expect to see at a cellular level
Answer:
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Explanation:
How can photosynthesis be related to cellular respiration?
Question 8 options:
These two processes have nothing in common.
They both have the same reactants (need the same things).
They both produce the same products.
What's produced (made) by one is needed (the reactants) for the other.
Ophrys sphegodes, the early spider orchid, has flowers with yellow-green sepals and petals and one highly modified, velvety brown central petal at the base of the flower. There is single male anther is found at the tip of the column. The stigma is on the underside of the column just below the anther.
Required:
a. Is the flower complete or incomplete?
b. Is the flower perfect or imperfect?
c. Is the flower radially or bilaterally symmetrical?
Answer and Explanation:
a. This is a complete flower. Complete flowers are those formed by chalice, corolla, androecium and gynoecium. In the case of the flower presented above, we can see that it has gynoecium because it has a stigma that is part of the gynoecium composition. We can also see that she has androecium, because she has an anther that is part of the composition of androecium. The flower also has a corolla and chalice, since the chalice is formed by the sepals and the corolla by the petals.
b. This is a perfect flower, as we can see that androecium and gynoecium are present in the same flower. Imperfect flowers are those with only androecium or gynoecium.
c. The flower has bilateral symmetry, which is common in all orchids. This type of symmetry allows the flower to only be divided into two equal parts. Radial symmetry, on the other hand, allows flowers to be divided into many equal parts.
If there are more lynx than rabbit populations can support, how can there still be large lynx populations during that time?
Answer:
reputation hope this helps
4. How should the fossils in the sediment layers of Earth appear if species have evolved over time?
A. All of the layers should contain fossils of simple organisms.
B. All of the layers should contain fossils of complex organisms.
C. The lower layers should contain fossils of more complex organisms.
D. The upper layers should contain fossils of more complex organisms.
Answer:
D the upper layers
Explanation:
at first, lifeforms were simple. they got more complex for a variety of reasons, including to adapt to the changing earth. simple organisms will be lower down for that reason.
The lower layers should contain fossils of more complex organisms. So, the correct option is (C).
What are Fossils?A fossil is defined as the preserved remains, imprint or trace of something that once lived from a previous geological era. Examples of fossils are bones, shells, exoskeletons, fossilized traces of animals or microbes, objects preserved in amber, hair, petrified wood, and DNA residues. The totality of fossils is known as the fossil record.
There are four main types of fossils which are formed in different way are conducive to preserving different types of organisms. Fossils are mold fossils, cast fossils, trace fossils and true form fossils.
Fossil layers are fossils that formed in sedimentary rock that formed in layers by depositing and pressing sediments on top of each other.
Thus, the lower layers should contain fossils of more complex organisms. So, the correct option is (C).
Learn more about Fossils, here:
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What are the three
parts of the hair SHAFT?
Answer:
The hair shaft is comprised of three layers: the cuticle, cortex, and medulla.
Explanation:
Answer:
Hair shaft is consisted of three layers: cuticle, cortex and in certain cases medulla. Flat and square-shaped cuticle cells are adhered tightly to the cortex cells proximally.Explanation:
can you please help me
Answer: 27. arcuate 28. enzyme. 29. three regions
Explanation:
HELP ASAP !!!!! I WILL GIVE POINTS. Complete the following sentence.
The animal _____
industry provides nearly 2 million American jobs.
Answer:
livestock
Explanation:
Answer: agriculture
Explanation:
How would expect the biomass to change after ten days if seeds and plants were provided the following conditions?
No light, water (seeds sprouted): Stay the same, decrease, or increase
Light, water (seeds sprouted): Stay the same, decrease, or increase
Light, no water (seeds did not sprout): Stay the same, decrease, or increase
Answer:
La biomasa (energía) se refiere a la biomasa «útil» en términos energéticos formales: las plantas transforman la energía radiante del Sol en energía química a través de la fotosíntesis, y parte de esa energía química queda almacenada en forma de materia orgánica; la energía química de la biomasa puede recuperarse quemándola directamente o transformándola en combustible.
Explanation:
Two fruit fly cells are observed. Cell A has 16 chromosomes and the Cell B has 8 chromosomes. Which of the following is true?
а
b
ОООО
Cell A is in interphase and cell B is in prophase.
Cell A is in metaphase and Cell B is in interphase
Cell A is in anaphase and cell B is in prophase
Both cells are in prophase
Answer:
both cells are in prophase
Explanation:
Please, serious answers only, don't search it up. Can an animal adapt into a new species? If so, why?
Answer:
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Answer:
Yes, an animal can adapt into a new species through a process called speciation. Speciation occurs when a population of animals undergoes significant changes over time, leading to the formation of a new species that is different from the original one.
Explanation:
REASONThe main reason for this adaptation and the emergence of a new species is natural selection. Natural selection is the process by which individuals with advantageous traits are more likely to survive and reproduce, passing on those traits to their offspring. Over many generations, these advantageous traits become more common in the population, while individuals without these traits become less common.
When a population of animals faces different environmental conditions or habitats, it can create diverse selection pressures. Some individuals may possess traits that allow them to better adapt to these new conditions, giving them a higher chance of survival and reproduction. As these advantageous traits become more prevalent in the population, they can eventually lead to reproductive isolation.
Reproductive isolation occurs when individuals from the original population can no longer mate and produce fertile offspring with individuals from the newly adapted population. This can happen due to genetic differences and changes that have accumulated over time. When reproductive isolation is complete, the two populations are considered separate species.
SUMMARYOverall, the process of adaptation and the formation of new species is driven by natural selection, which favors traits that enhance an organism's chances of survival and reproduction in specific environments. Over time, these changes can accumulate, leading to the development of distinct species.
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The genetic code was elucidated through the use of polyribonucleotide's synthesized either enzymatically or chemically in the laboratory. Given what we now know about the genetic code, how would you make a polyribonucleotide that could serve as an mRNA coding predominantly for may Phe residues and a small number of Leu and Ser residues?
What other amino acid(s) would be encoded by this polyribonucleotide, but in smaller amounts?
Answer:
The genetic codes are responsible for coding the amino acids. The messenger RNA (ribonucleic acid) consists of triplet codons, which is responsible for the synthesis of respective amino acid sequences. The UUU codes for the phenylalanine amino acids. Similarly, the incorporation of 5 mixtures such as ADP, GDP, CDP, and UDP can alternatively produce the mRNA polymer with the serine and lysine residue in a small amount.
EXPLANATION:
The genetic codes are responsible for coding the amino acids. The messenger RNA (ribonucleic acid) consists of triplet codons, which is responsible for the synthesis of respective amino acid sequences. The formation of the RNA stand is done by using ADP, GDP, CDP, and UDP (adenosine, guanosine, cytosine, and uridine diphosphate). It requires no template for the formation of polymers. Therefore incorporation of UDP is done by the incorporation of polynucleotide phosphorylase, which will result in the formation of poly U. The UUU codes for the phenylalanine amino acids. Similarly, the incorporation of 5 mixtures such as ADP, GDP, CDP, and UDP can alternatively produce the mRNA polymer with the ser and lysine residue in a small amount. For example in the stretch of polynucleotide UUU presence of one of the following codon UUA, UUG, CUU, CUC, CUA, CUG as well as UCU, UCC, UCA, UCG, and AGU can synthesize leucine and serine residues. (UUC)n can synthesize the polymer of phenylalanine, serine, and incorporation of few A and G will synthesize leucine. However, the presence of A, C, and G can also synthesize a small amount of tyrosine, isoleucine, and cysteine residue.
Base excision repair is responsible for fixing (select all that apply): Group of answer choices individual damaged nucleotides that minimally impact the helix structure. double stranded breaks. single stranded breaks. individual damaged nucleotides that cause a major impact to the helix structure.
Answer:
-- individual damaged nucleotides that minimally impact the helix structure.
-- single stranded breaks
Explanation:
The Base excision repair is popularly known as the BER. It is defined as the cellular mechanism which repairs the DNA that are damaged throughout the cell cycle. It helps in correcting the the small base lesions which do not distort the helix structure of the DNA significantly. It is also responsible for fixing the single stranded breaks of the DNA.
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In pea plants, flower color is controlled by a pair of alleles where purple (P) is dominant to white (p).
a. True
b. False
Answer:
True
Explanation:
An allele refer to two alternative forms of the same gene. An allele is a pair of genes found on a given chromosome. Usually, every allelic pair has one which is dominant and one which is recessive.
The dominant allele is expressed while the recessive allele is not expressed.
The colour of the pea plant is controlled by a pair of alleles wherein purple (P) is dominant to white (p).
The expressed colour of the pea plant(phenotype) is dependent on the arrangement of the genes(genotype) of the pea plant.
Which is not true about amphibians
2. Many lack legs during their life cyce.
Most have developed a lateral line system,
Most depend on outside water sources to keep their body moist
Many spend part of there in the water and part of
Answer:
many lack legs during their life cycle
Which is a byproduct of using hydrogen fuel?
electricity
smog
water
carbon dioxide
Answer:
Hello There!!
Explanation:
The answer is=>Water.
hope this helps,have a great day!!
~Pinky~
Which statement describes an autotroph?
.
A) an organism that breaks down and obtains energy stored in dead organic matter
B) an organism that captures energy from sunlight or chemicals and uses it to produce food
C) an organism that is completely reliant on consuming other organisms to obtain energy
D) an organism that meets its energy needs by feeding on organic matter or other organisms
Answer:
B
Explanation:
I believe it's b it makes sense-
bye hope it helps
Please select the word from the list that best fits the definition
Grouping items together to keep observations organized
inferring
predicting
classifying
observing
The answer is classifying.
~~~~~~~~~~~~~~~~~~~~~~~~~~~
Definition: Arranging (a group of people or things) in classes or categories according to shared qualities or characteristics.
Epinephrine initiates a signal transduction pathway that involves the production of cyclic AMP (cAMP) and leads to the breakdown of glycogen to glucose, a major source of energy for cells. But glycogen breakdown is only part of the fight-or-flight response that epinephrine brings about; the overall effect on the body includes increased heart rate and alertness, as well as a burst of energy. Given that caffeine blocks the activity of cAMP phosphodiesterase, propose a mechanism by which caffeine ingestion leads to heightened alertness and sleeplessness.
Answer:
Epinephrine initiates a signal transduction pathway that involves the production of cyclic AMP (cAMP) and leads to the breakdown of glycogen to glucose, a major source of energy for cells. But glycogen breakdown is only part of the fight-or-flight response that epinephrine brings about; the overall effect on the body includes increased heart rate and alertness, as well as a burst of energy. Given that caffeine blocks the activity of cAMP phosphodiesterase, propose a mechanism by which caffeine ingestion leads to heightened alertness and sleeplessness.
Explanation:
HELP PLEASE
What behavior allows newborn animals to recognize and follow the first moving object they see?
Question 4 options:
conditioning
courting
mimicking
imprinting
Answer: imprinting
Explanation: i took the test
To survive, an organism must be able to maintain stable internal conditions in a changing environment. This process is called homeostasis. The Human Homeostasis Gizmo™ allows you to explore how the human body stays at a nearly constant temperature in different conditions. Notice the Air temp. and Body temp. thermometers representing the air temperature and body temperature.
1. What is the initial air temperature?
2. What is the initial body temperature?
3. Next to each factor listed below, write "increase," "decrease," or "same" based on how you expect that factor to affect body temperature.
A. Raising air temperature: __same____Sweating: __decrease___.
B. Lowering air temperature: ___increase___Shivering: __increase___.
C. Adding clothing: __increase_____Exercising: ___increase_____.
Answer:
1. Initial air temperature: 0 °C (32 °F)
2. Initial body temperature: 37 °C (99 °F)
3. The expected effect of different factors on body temperature are:
A. Raising air temperature: Increase
B. Lowering air temperature: Decrease
C. Adding clothing: Increase
D. Exercising: Increase
Explanation:
The question is incomplete, it is necessary to look for a software related to this homework.
Homeostasis is a property of organisms that consists in their capacity to maintain a stable internal condition by compensating for changes in their environment through the regulated exchange of matter and energy with the exterior. It is a a dynamic equilibrium controlled by a mechanism of feedback that constitute the self-regulating mechanisms. Examples of homeostasis are temperature regulation and the balance between acidity and alkalinity (pH)
The Human Homeostasis Gizmo™ is a software that allows you to explore how the human body stays at a nearly constant temperature in different conditions. To use it, you have to set the air temperature at 0 °C (32 °F) and the body temperature at 37 °C (99 °F), and click Play. After a simulation of 1 hour, then click Pause and gather the information. Then, do the same cprocedure to test the effect of other factors and Click Reset between each trial. To determine the effect of different factors on body temperature, you have to compare the final body temperature to the final body temperature while there is no specific movement or change.
Then:
1. Initial air temperature: 0 °C (32 °F)
2. Initial body temperature: 37 °C (99 °F)
3. The expected effect of different factors on body temperature are:
A. Raising air temperature: Increase
B. Lowering air temperature: Decrease
C. Adding clothing: Increase
D. Exercising: Increase
This is for a logical reason, anything you do to heat it or generate heat, will increase the temperature. And anything you do to generate cold, will lower the temperature.
The effect of different factors on body temperature according to Gizmo:
A. Raising air temperature: Increase
B. Lowering air temperature: Decrease
C. Click Add to a sweatshirt, hat, pants, and parka. Then, adding clothing:
Maintained
D. Set the Exercise level to 70%, then exercising: Increase
When the temperature increases, it is because you are able to record the results from the software and you see temperature goes from 99 °F to 100 °F. When the temperature decreases. it is because it goes from 99 °F to 97 °F. When it is maintained, there is no change.
list the 3 main types of rocks and the process of how they are craeted
Providing an example from your day-to-day life, explain the functions of the nervous system.
What are the consequences of humans adding gases and other substances to earth's atmosphere?
Answer:
there is an increase of the average global temperature due to the accumulation of polluting gases in higher atmospheric levels that causes regional and global climate change.
Explanation: