14. Cats have bones in their front legs that are similar to humans and also similar to the bones in the front flipper of a turtle. What do scientists hypothesize that
this means?
a These are homologous structures - they have similar structure despite their different functions and provide evidence that they evolved from a common ancestor.
b These are homologous structures - because of their different functions they do not provide evidence of a common ancestor and the limbs did not evolve from a single
common ancestor.
c These are analogous structures - they have similar structure despite their different functions and provide evidence that they evolved from a common ancestor.
d These are analogous structures - because of their different functions they do not provide evidence of a common ancestor and the limbs did not evolve from a single
common ancestor.


Accounts with not serious answers will be reported

Answers

Answer 1

Answer:

I believe that the answer is D.

Explanation:

This is because these organisms don't seem to evolve from a common ancestor but do seem to look similar.  


Related Questions

Calculate the net force in Newtons of the following situation <-2N+->8N

Answers

Answer:

The correct answer is: + 6 N to the right side.

Explanation:

In this question, there are two opposite forces one towards the left and the second one towards the right. The left-pointing force value of 2 [N] while the other Force points to the right with a value of 8 [N].

In arithmetic representation it could be demonstarted or write as:

F = -2 + 8

F = + 6 [N]

The force pointing right side is more and will have the force of = 6 N

How do circulatory system and immune system work together to respond to an injury

Answers

The answer is C! Have a beautiful day/night

hello I am Iron-60 , the twin of Iron-56, how am different than my twin?

Answers

Iron-60 has 34 neutrons, that’s 4 extra neutrons that make the isotopes unstable to radioactive decay

What do animals do with the carbon dioxide produced in their cells during cellular respiration?a.store it for later useb.reuse it during photosynthesisc.exhale it in the breathing processd.combine it with water to make sugar

Answers

Answer:

below

Explanation:

I'm pretty sure the answer is "exhale it in the breathing process"

Hope this helps! :)

Calculate the percentage of viable cells
102/112x100

Answers

Answer:

91.07%

Explanation:

Given the expression

102/112 x 100

This can also be expressed as;

= (2*51)/(2*56) * 100

= 51/56 * 100

= 5100/56

= 91.07%

Hence the percentage of viable cells is 91.07%

Which biome receives the most rain?

tropical rain forest
temperate rain forest
taiga
tundra

Answers

Answer:

A, Tropical Rainforest

Explanation:

They get the most rain, more than 66 inches every year

Answer: Tropical Rain Forest

The tropical biome found closet to the equator with warm temperatures and the most plant growth of any biome. It receives between 70-150 cm of precipitation per year.

__________ give you energy and help you feel satisfied after eating.

Answers

Animals, including humans, derive chemical energy from their food to support their metabolism, including their muscular activity.

What is the source of energy from food?

The majority of animals get most of their energy via aerobic respiration, which involves mixing carbs, lipids, and proteins with air or water-based oxygen.

Cells release energy from nutrients through the process of respiration. The majority of the time, glucose has already been produced from the food.

Because they work quickly and provide energy as soon as they are taken, carbohydrates—which have 4 kcal per gram—are the foods that are used as an energy source the most frequently.

Therefore, food give you energy and help you feel satisfied after eating.

Learn more about food here:

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HELP ASAP I WILL GIVE BRAINLIST!! Which of the following best defines the molar mass of a substance? (5 points)

Mass, in grams, of each particle of the substance

Total mass, in grams, of 100 particles of the substance

Mass, in grams, of the nucleus of the substance's atoms

Total mass, in grams, of all the particles in one mole of the substance

Answers

Answer: Molar mass is defined as the mass in grams of one mole of a substance. The units of molar mass are grams per mole, abbreviated as g/mol.?

Explanation:

https://chem.libretexts.org/Bookshelves/Introductory_Chemistry/Book%3A_Introductory_Chemistry_Online_(Young)/04%3A_The_Mole_and_Measurement_in_Chemistry/4.2%3A_Molar_Mass Hope this helps :3

The molar mass can be defined as the total mass, in grams, of all the particles in one mole of the substance.

What is the molar mass?

The molar mass is the sum of the total mass in grams of all the atoms that make up a mole of a particular molecule.

Which of the following best defines the molar mass of a substance?

Mass, in grams, of each particle of the substance. False. It is the mass of 1 mole of particles, not 1 particle.Total mass, in grams, of 100 particles of the substance. False. It is the mass of 1 mole of particles, not 100 particles.Mass, in grams, of the nucleus of the substance's atoms. False. It is the mass of 1 mole of whole particles, not just the nucleus.Total mass, in grams, of all the particles in one mole of the substance. True.

The molar mass can be defined as the total mass, in grams, of all the particles in one mole of the substance.

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Rabbits in most areas have a brown coat. The arctic hare has a bright white coat in
winter. How does the arctic hare's white color help it survive?

Answers

Answer:

Indeed, rabbits, in most of the planet, tend to have their fur colored brown, copper or other similar shades. Now, in the Arctic regions, these animals do not have this color, but a white one, similar to the environment that surrounds them. This is so because these animals, for evolutionary reasons, have adapted their fur to the snowy environment that surrounds them in the Arctic, in order to avoid being detected by potential predators, protecting themselves and trying to ensure their survival.

The original base sequence of DNA is : CAG TTA CCA. If the amino acid sequence that results from translation of this DNA base sequence is: valine-tyrosine-glycine, what mutation occurred in the DNA? Explain
A. An addition mutation occurred
B. A deletion mutation occurred
C. A substitution mutation occurred
D. A mutation did not occur.

Answers

C

I think substitution, because the original translation of the original base sequence is glutamine-leucine-proline. The base sequence for valine-tyrosine-glycine is: GT#  TA#  GG# . of course the last codon is unclear, but the first two gives us enough to know too much change happened for a simple addition or deletion mutation. The bases were completely switched out, therefore it is a substitution mutation. I attached a codon chart.

1. In exponential population growth, A. every generation has a larger population than the generation before. B. the population remains below its carrying capacity. C. births and deaths are equal, but disease is limited. D. limiting factors eliminate predators in the population.​

Answers

The answer is A) every generation has a larger population than the generation before.

Explanation:

In exponential growth, a population's per capita (per individual) growth rate stays the same regardless of population size, making the population grow faster and faster as it gets larger.


Evolution can occur at different rates; however, for evolution to occur,
there must be *
A) variations within a species
B) extinction of the species
C) asexual reproduction
D) no change in the genes of an organism

Answers

Answer:

A (this is filler for the 20 characters needed)

what is the final step in the water cycle?

Answers

Answer:

The funny thing is that the water that falls from the sky as rain today, might have fallen last week, last month, last year or thousands of years ago. It is the greatest recycler of all time! There are four main stages in the water cycle. They are evaporation, condensation, precipitation and collection.

Based on DNA's structure and function, why did Meselson and Stahl
choose to grow E. coli in broths of nitrogen isotopes?
A. The bacteria's phosphate groups would be replaced by the
nitrogen.
OB. The nitrogen would be incorporated into deoxyribose.
C. The nitrogen would influence bonding between base pairs.
D. The nitrogen would be incorporated into the DNA
nucleotides

Answers

Answer:

Ecoli has certain istopyes in where the molecules such as carbon dioxide re introduces the carbon molecules therfore ecoli has certain phosphate groups.

Explanation:

please help no links or i will report

Answers

Answer and Explanation:

The difference between a food chain and a food web:

Food Chain

- Only one possible direct line of energy going through organisms

- Consists of usually 4-6 organisms

Food Web

- Multiple links  that branch off in a web-like form, with some organisms being interconnected with each other.

The answer is the third option: A food chain represents one possible pathway that energy and matter can take in an ecosystem. A food web contains multiple, interconnected food chains and describes how energy and matter moves through an entire ecosystem.

#teamtrees #PAW (Plant And Water)

sustainability refers to using resources in such a way that we ensure that they will be clean and healthy for our use

Answers

Answer:

The given statement is true.

Explanation:

Sustainability aims to satisfy immediate requirements, without either undermining skilled workers' opportunity to accomplish about there requirements or needs.It allows companies to decide on their lengthy effects throughout regulatory, socioeconomic, as well as evolutionary terms as well as on quick benefits, including such income reports during the next half portion.

Arrange these statements in the right order to describe process of inhalation.


___Air is drawn into the lungs

___Air pressure in the chest cavity decreases

___Lungs expand

___The diaphragm contracts and flattens

___The muscles between the ribs contract to move the ribs up and out

Answers

Answer:

1,5,2,3,4

Explanation:

I'm not sure about this, so take this answer with a grain of salt. I think you would fill in the blanks like this: 1,5,2,3,4.

Locations in California are warmest in summer because sunlight in summer is

A) least intense and of shortest duration
B) least intense and of longest duration
C) most intense and of shortest duration
D) most intense and of longest duration

Answers

D most intense and longest duration is the answer

How long is the Earth’s precession estimated to last?

Answers

Answer: The Earth's axis rotates (precesses) just as a spinning top does. The period of precession is about 26,000 years.

Explanation:

Answer:

The Earth's axis rotates just as a spinning top does. The period of precession is about 26,000 years.

Explanation:

...............

Eukaryotic gene regulation takes place through the use of RNA-
binding proteins called ________
and
short regions of DNA that help position RNA polymerase called
_________.
At the organism level, ________.
control the differentiation and development of cells during
embryonic development.

Answers

Answer:

Hi your answers would be transcription factors, TATA boxes, and homeotic genes

Eukaryotic gene regulation takes place through the use of RNA- binding proteins called transcription factors and short regions of DNA that help position RNA polymerase called TATA boxes.

At the organism level, homeotic genes control the differentiation and development of cells during embryonic development.

Transcription factor:

Transcription factors are proteins involved in the process of converting, or transcribing, DNA into RNA.  Transcription factors include a wide number of proteins, excluding RNA polymerase, that initiate and regulate the transcription of genes.  Regulation of transcription is the most common form of gene control.

Find more information about genes here:

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PLEASE ANSWER QUICK AND CORRECTLY
what is the complementary strand of DNA to this converted strand?
A-G-G-C-T-A
answers:
1. TCCGAT
2. UCCGAU
3. TTCGAT
4. TUGGCT

Answers

Answer:

1

Explanation:

a goes to t c goes to g

PLEASE I NEED HELP IMEDIATELY!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Igneous rock is made from molten rock. What is molten rock?

A. Rock that is molded

B. Rock that is moving

C. Rock that is mixed

D. Rock that is melted

Answers

D) Rock that is melted !!!!

D. Rock that is melted

Rainforests are habitats for many plants and animals. However, habitat fragmentation is occurring because of human activity. When a rainforest is fragmented, a large area is divided into small patches that are isolated from each other. Species living in these patches are more likely to become extinct as a result of overcrowding and competition.

Which of the following is the best way to minimize the effects of habitat fragmentation on the biodiversity of a rainforest ecosystem?
A.
constructing boundaries and fences around each habitat patch
B.
building natural green pathways across the original habitat to join all the patches together
C.
building concrete roads across the original habitat to join all of the patches together
D.
introducing new species that compete with the existing species in each habitat patch

Answers

Building natural green pathways across the original habitat to join all the patches together. Option B

What is rain forest?

A rainforest is characterized by towering, largely evergreen trees and heavy rainfall. Some rainforests have existed in their current form for at least 70 million years, making them the oldest existing ecosystems on Earth.

Hence we can see that the best way to  minimize the effects of habitat fragmentation on the biodiversity of a rainforest ecosystem is building natural green pathways across the original habitat to join all the patches together.

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What is required for reactants to form bonds?

Answers

Answer:

Energy input is required for the reactants to form bonds.

UAE is a hot and dry region but still it is seen that the production of plants is increasing. Justify your answer

Answers

Answer:

mmzozkn

Explanation:

mdkxmxkcmmxkdmxlxl

When the gene encoding a certain cytoskeleton protein is deleted, the resulting mutant cells round up and do not form their normal appendages. These mutants can be rescued when a gene encoding an N-terminal green fluorescent protein (GFP) fusion of the protein is expressed, but not when a gene encoding a C-terminal GFP fusion is expressed. Which fusion protein is appropriate to use in studying cellular localization and activity

Answers

Answer: N-terminal green fluorescent protein (GFP)

Explanation:

Protein synthesis takes place in ribosomes located in the cell cytoplasm, in which amino acids are transported by transfer RNA corresponding to each amino acid to the messenger RNA where they bind in the appropriate position to form new proteins. The messenger RNA has a sequence of nucleotides that are translated into protein, as each codon (set of three amino acids) codes for one amino acid.

Genes are the storage units of genetic information, so they are segments of DNA that contain the information on how the cells of the organism should function. Each gene codes for a protein, so if a gene is damaged or absent, the protein will not be obtained. In this case, mutant cells with a deleted gene, will round up and wont form their normal appendages. This mutation can be rescued or repaired with a gene that encodes an N-terminal green fluorescent protein (GFP) fusion of the protein. The N-terminal end is the amino-terminal end and it refers to the end of a protein that ends with an amino acid that has a free amino group. The C-terminus or carboxyl-terminus is the end of a protein that ends in a carboxyl group. The convention for writing peptides is to place the C-terminal end to the right and write the sequence from the N- to the C-terminal end. So, when an N-terminal green fluorescent protein (GFP) fusion of the protein is expressed, the gene will produce the protein with a GFP tag.

GFP is Green Fluorescent Protein, and it is a protein produced by the jellyfish Aequorea victoria that emits bioluminescence in the green region of the visible spectrum. When a gene is fused to another gene (at either the N- or C-terminus, although in this case it is the N-terminus), the entire messenger RNA is translated together as if it were a single fused protein. Thereby, since the protein will be produce with a GFP tag, it can be seen under the microscope and it will be apropiate to use in studying cellular localization and activity.

There are some considerations that this problem does not question, such as that there must be a start codon for protein synthesis and a stop codon, and this stop codon must not be in the middle of the gene or between the gene and the GFP tag.

Nitrogen is used and reused by various organisms and processes as it cycles through the environment. Which of the following statements is false?

A. Plants use nitrogen to make proteins and other molecules

B. Nitrogen-fixing bacteria play a minor role in the nitrogen cycle

C. Urine from animals returns nitrogen to the soil

D. Decomposers release nitrogen compounds into the soil

Answers

It should be B if not then D

pretty please answer!! giving brainliest to the one who is correct first!!!

Answers

A box of butter sticks

Which of the following gives the most accurate description of the levels of biological organization?
O Organisms are composed of organs that are composed of subunits called organelles.
O Organisms are composed of body systems that are composed of subunits called cells.
Organs are composed of cells that are composed of subunits called tissues.
Organs are composed of tissues that are composed of subunits called cells.

Answers

Answer:

Organs are composed of tissues that are composed of subunits called cells.

Explanation:

In biology, there are five levels of organization that makes up living organisms. These five levels of organization make up one another in the following ascending hierarchical order:

Cell → Tissue → Organ → System → Organism

Based on this hierarchy, cells make up tissues, tissues make up organs, organs make up systems, and systems make up an organism. According to this question, the most accurate description of the levels of biological organization in the option is "Organs are composed of tissues that are composed of subunits called cells".

why do the ribosomes read the nucleotides three bases at a time brainly

Answers

Answer:

because the codon reads 3 bases at a time

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