Answer:
Very necessary for its survival.
Explanation:
Movement of molecules is very important to maintain a healthy cell environment because some molecules are required by the cell for its growth and development. Some molecules moves inside the cell environment through a semi-permeable membrane such as glucose, oxygen, potassium etc while on the other hand, some molecules are removed from the cell which are waste materials such as carbondioxide etc. If these waste materials are not removed from the cell, it greatly damaged the cell.
To test for protein, you added Biuret solution and observed color changes. Suppose that the color data below was observed.
A 3-column table has 1 rows. The first column is labeled Gelatin (+ control) with entry pink/purple. The second column is labeled
Water (negative control) with entry pink/purple. The third column is labeled Mystery food sample with entry blue.
The data above indicate an error. How do you know? What might have caused the error?
Answer:
When tested for proteins neither gelatin or water was not pink/purple
Explanation:
credit to person who commented on question above
Answer:
The water should not be pink/purple because water should test negative for protein. The water should actually have turned blue, because Biuret solution is blue. Someone may have mislabeled the test tube with water. The water may have been contaminated with a protein.
HELP!!!
The tissues that develop from
of a zygote are the direct result of:
a. Meiosis and fertilization
B. Fertilization and differentiation
C. Asexual reproduction and meiosis
D. Differentiation, later,
Fertilization
Answer:
D. differentiation, later, fertilization
Which statement best describes how vomiting can help an animal maintain homeostasis?
I think there are choices/options in that particular question. Please type in the choices in the comment section next to my answer below for me to answer your questionnaire exactly.
This is my idea about your question:
It regulates the body temperature of the animal within a specified range and it expends the body's extra energy.☆彡 HannaSmall changes can add up over MULTIPLE GENERATIONS to make
A. the same species
B. new species
Answer:
B: new species
Explanation:
These are mutations to the genetic code and over time they can create a new species.
Answer:
B. new species
Explanation:
Small changes can add up over multiple generations to make new species.
Anthropologist: In an experiment, two groups of undergraduates were taught how to create one of the types of stone tools that the Neanderthals made in prehistoric times. One group was taught using both demonstrations and elaborate verbal explanations, whereas the other group learned by silent example alone. The two groups showed a significant difference neither in the speed with which they acquired the toolmaking skills nor in the level of proficiency they reached. This shows that Neanderthals could just as well have created their sophisticated tools even if they had no language
Which one of the following, if true, most weakens the anthropologist's argument?
(A) Apart from the sophistication of their stone tools, there is a great deal of evidence suggesting that Neanderthals possessed some form of language.
(B) The students who were taught with verbal explanations were allowed to discuss the toolmaking techniques among themselves, whereas the students who learned by silent example were not.
(C) The tools that the undergraduates were taught to make were much simpler and easier to make than most types of tools created by Neanderthals.
(D) The instructor who taught the group of students who learned by silent example alone was much less proficient at making the stone tools than was the instructor who taught the other group of students.
(E) The tools created by Neanderthals were much less sophisticated than the tools created by anatomically modem humans who almost certainly possessed language and lived at the same time as the Neanderthals.
Answer:
A
Explanation:
The point of this arguement is that with or without speaking they were able to make the same sophisticated and complex tools, if it is true that both had a language that would mean the silent people would have no point and that both types of humans had the same initial factors.
DONE
monocot
dicot
Differentiate
Answer:
Monocots differ from dicots in four distinct structural features: leaves, stems, roots and flowers. ... Whereas monocots have one cotyledon (vein), dicots have two. This small difference at the very start of the plant's life cycle leads each plant to develop vast differences.
hope it helps
Lisa is investigating a chemical reaction involving carbon compounds.which of these results could not occur cording to scientific laws about chemical reactions matter and energy
Answer: The mass of carbon in the products is greater than the mass of carbon in the reactants.
Explanation:
A population of ground mice consist of 500 individuals. You are interested in the gene that codes for for a color and find out there are 580 dominant alleles in this population. What is the allele frequency for the dominant allele? What is the allele frequency for the recessive allele? (show your work)
Answer:
0,58
Explanation:
Mice are diploid (2n) organisms, which means that their cells contain two complete sets of homo-logous chromosomes (i.e., they have two copies of any given locus/gene). An allele can be defined as a variant of a gene, whereas diploid (2n) organisms have two alleles at each genetic locus, which are located on homo-logous chromosomes. In this case, we know that there are 580 dominant alleles in a population of 500 individuals, thereby the total number of alleles in this population is 1000 (2n >> 500 x 2 = 1000 alleles), and the frequency of the dominant allele is 0,58 (580/1000 = 0,58).
Complete the statements below. When muscles contract, they become _____. The muscles of the rear end, legs, and feet are called _____ muscles. Muscles move food down the digestive tract.
Answer:
Short and thicker, anti-gravity, smooth
Explanation:
Explain how Sodium and Potassium exchange during active transport Write your answer in steps.
Answer:
Three sodium ions are extruded from and two potassium ions are imported into the cell.
Explanation:
Sodium-Potassium pump occurs during active transport in which sodium ions are removed and sent outside the cell while on the other hand, potassium ions are moved inside the cell due to their needs in the cell. Three sodium ions are moves outside the cell whereas two potassium ions are imported into the cell with the use of ATP molecules. The exchange occurs till the equilibrium of inside and outside environment can be achieved.
NO LINKS PLEASE
If Charles Darwin could return to the Galapagos Island today, which of the following is an example of a change he might see?
O A. no changes
O B. more islands
O C. more tortoises
OD. new species of iguanas
Answer:
D. New species of iguanas
Explanation:
A- doesn't make sense because nature changes every day.
B- More islands is possible but not likely considering your other options.
C- More tortoises is also possible but because I haven't read your text book or where your learned this information I can't be sure this is it.
D- Is the likeliest
What does DNA prove about organism ancestry?
A. Plants and animals are not related to one another
B. That all organisms are related to one another
C. DNA and RNA are completely different forms of genetic coding
D. Extraterrestrial life will have DNA as well
Answer:
B. That all organisms are related to one another
Explanation:
DNA and the genetic code reflect the shared ancestry of life. DNA comparisons can show how related species are. Biogeography. The global distribution of organisms and the unique features of island species reflect the evolution and geological change.
Answer:
B. That all organisms are related to one another
Explanation:
DNA prove about organism ancestry, that all organisms are related to one another.
_____ provide evidence of common ancestry among organisms.
A:Variations in early embryos
B:Similarities in DNA sequences
C:Variations in chromosomes
D:Differences in nucleotide order
Answer:
B:Similarities in DNA sequences
Explanation:
Molecular similarities provide evidence for the shared ancestry of life. DNA sequence comparisons can show how different species are related. Biogeography, the study of the geographical distribution of organisms, provides information about how and when species may have evolved.
Answer:
B:Similaritions in DNA SequencesWhich describes a group of organs that work together to perform a common function? tissue O organism O organ system O cell
What is hemoglobin?
A. a protein
B. a carbohydrate
C. a lipid
A. a protein
hope it is helpful to you
Answer:
A. a protein
Explanation:
Haemoglobin is a globular protein of four subunits.
What do rock layers have to do with the age of the rock?
Explanation:
Geologists use the law of superposition to determine the relative ages of sedimentary rock layers.
O daltonismo é um distúrbio moderado ligado ao cromossomo X que se caracteriza pela cegueira para as cores verde e vermelha. Considerando-se o cruzamento de uma muher carreadora do alelo para o daltonismo ao se casar com um homem de visão normal, cuais as chances de as filhas desse casal serem carreadoras é de ?
Answer:
50%
Explanation:
Olá. Primeiramente é necessário informar que perguntas em português devem ser postadas no campo "world Languagens". Isso porque esse não é o servidor basileiro e sim o servidor americano. Caso contrario, a sua pergunta pode nunca ser respondida e até mesmo excluida do site.
Em segundo lugar, para que seja possivel que você repsonda a essa pergunta você precisará preencher um Quadrado de Punnett, como mostra a figura abaixo.
Como você sabe, as mulheres possuem os cromossomos XX e os homens XY. Como a mulher apresentada na pergunta acima possui o alelo para o daltonismo, mas não apresenta daltonismo, podemos considerar que apenas um dos cromossomos dela possuem esse alelo. O alelo para o daltonismo é recessivo, sendo assim, podemos considerar que essa mulher possui os alelos XDXd. Homem com quem essa mulher se casa, não possui daltonismo, logo os alelos dele são XDY, como mostrado na figura.
Ao preencher o quadrado de Punnett, você verá que existe a possibilidade desse casal possuir duas filhas, uma delas pode possuir os alelos XDXd, igual a mãe e, portanto, ser carreadora do alelo para o daltonismo.
Sendo existe uma chance, em duas filhas desse casal ter uma filha carreadora de daltonismo. Isso é igual a 1/2, que resulta em 0,5, ou 50% de chances de ter uma filha carreadora de daltonismo.
All of these are Cardiovascular disease EXCEPT
Heart Attack
Hypertension
Diabetes
Pulmonary Heart Disease
Answer:
Diabetes
Explanation:
Diabetes is a metabolic disease. :)
HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP
HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP
Answer:
answer A is the correct answer
High and low tides are caused by the moon. The moon's gravitational pull generates something called the tidal force. The tidal force causes Earth—and its water—to bulge out on the side closest to the moon and the side farthest from the moon. These bulges of water are high tides.
basically its A.
Which of the following will cause a Frameshift mutation?
A. an insertion
B. a substitution
C. a deletion
D. an insertion or a deletion
D. an insertion or a deletion
this is your answer
hope it is helpful to you
Animals that are the most similar, are found in completely different regions.
A. True
B. False
Answer:
B. False
Explanation:
Convergent evolution is the independent evolution of similar features in species of different periods or epochs in time. ... Functionally similar features that have arisen through convergent evolution are analogous, whereas homologous structures or traits have a common origin but can have dissimilar functions.
what are mammals? what are the examples of mammals?
Answer:
Mammals are a group of vertebrate animals constituting the class Mammalia and characterized by the presence of mammary glands which in females produce milk for feeding (nursing) their young, a neocortex (a region of the brain), fur or hair, and three middle ear bones. These characteristics distinguish them from reptiles and birds, from which they diverged in the Carboniferous, over 300 million years ago.
aardvarks.
bats.
elephants.
hamsters.
humans.
rabbits.
rhinoceroses.
whales.
Explanation:
Answer: a warm-blooded vertebrate animal of a class that is distinguished by the possession of hair or fur, the secretion of milk by females for the nourishment of the young, and (typically) the birth of live young. ( A animal with hair)
examples: dog, cat, platypus, wombat, kangaroo, tiger, lion, koala, squirrel, horse, giraffe, deer, etc...
Explanation: if the animal has fur/hair its a mammal
А
В
С
H
G
E
E
Which organelle is labeled A
i think its animal cell?
SAQ-1:How do you take care of your own clothes
What do the arrows indicate?
Air moves in a direction that creates land breezes.
Air above land warms faster than air above water.
Air blows over long distances in a continual straight path.
Air pressure remains the same while cycling over land and water.
The best answer would be:
The first option.
Air moves in a direction that creates land breezes.
If you'd like to know more about this, you can read on:
The arrows show how air moves as land breezes are created. In coastal areas, land cools much faster than water, so what happens is the air above it gets cooled down. When this happens, it becomes more dense moves downwards towards land. This causes high pressure and cause winds to blow outwards towards water (ocean).
Air moves in a direction that creates land breezes. Therefore, option (A) is correct.
What is land breeze?A land breeze is a type of wind that occurs at night and flows from land towards the nearby body of water, such as a lake or ocean. It is the result of temperature differences between the land and water surfaces during the nighttime hours. Land breezes are typically observed in coastal regions or areas near large bodies of water.
During the day, the land surface heats up more quickly than the water surface. As a result, the air above the land becomes warmer and rises, creating a region of low pressure. Meanwhile, the water retains its temperature more effectively, leading to a cooler air mass above the water and a region of high pressure. This temperature contrast sets the stage for the development of a land breeze.
As the sun sets and the land cools down faster than the water, the pressure gradient reverses. The air over the land becomes cooler and denser, forming a high-pressure area. Simultaneously, the warmer air over the water creates a low-pressure area. The pressure difference drives the wind to flow from the land towards the water, resulting in a land breeze.
Land breezes are typically characterized by gentle and steady winds blowing from the land towards the water. They are often observed during clear and calm nights when the temperature contrast between the land and water surfaces is significant. Land breezes can have localized effects, such as influencing local weather patterns and affecting coastal ecosystems.
Learn more about land breeze, here:
https://brainly.com/question/29765563
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Which statement best illustrates a biotic or an abiotic factor that is often found in a city park
Answer:
"Decaying leaves are an abiotic factor because they are not living. Rocks are an abiotic factor because they have never been alive. Water in ponds is a biotic factor, because it provides a habitat for living things."
Answer:
Rocks are an abiotic factor because they have never been alive
Explanation:
Awnser on EDGE
Alternating current comes from big spinning generators which is constantly reversing as the generator spins this type of current is most commonly found at the wall socket in your house true or false
Answer:
true
Explanation:
Blood type A person marries a blood type B person, both are heterozygous for the trait, what could their offspring be?
AB
B
A
O
all of the above
Answer:
All of the above
Explanation:
When and where would you expect to find the highest rate of primary productivity
Answer: Net primary productivity is the amount of gross primary productivity remaining after respiration, which is about 40 and 85 percent. Sloughs and marshes, as well as tropical rain forests, possess the highest rates of net primary productivity; deserts have the lowest.
Explanation:
I explained on the top-
The highest rate of primary productivity in terrestrial environments takes place in swamps and marshes and in tropical rainforests, and in aquatic environments it takes place in algal beds, estuaries, and reefs.
• In ecology, primary productivity refers to the rate at which conversion of energy to organic substances takes place by the photosynthetic producers that attain energy and nutrients from the sunlight, and chemosynthetic producers that attain chemical energy via oxidation.
• The majority of the energy assimilated by plants via the process of photosynthesis is not stored as organic substance, however, is utilized at the time of cellular respiration.
• In the process, the organic components like proteins, carbs, and fats are dissociated to provide energy in the form of ATP for the metabolic needs of the cells.
• The energy not utilized is stored in the tissues of the plants for future use and is known as the net primary productivity.
• The highest net primary productivity in terrestrial environments takes place in marshes and swamps and in tropical rainforests, and in aquatic environments it takes place algal beds, estuaries, and reefs.
These environments are mainly critical for the sustenance of global biological productivity.
To know more about:
https://brainly.com/question/14017102
Many prokaryotes reproduce through binary fission .the circular DNA is copied and moves to opposite sides of the cell.the cell divides .What kind of cell division and reproduction is this?
Answer: Mitosis and Asexual Reproduction