-HELP- Scientists compare the structures of a chicken embryo and a human embryo at the same stage of development. They find that both vertebrates have similar shapes and structures, including the presence of gill slits and tails. How is this comparison of the embryos used as supporting evidence of evolution?


1. The similarities suggest that chickens and humans are the direct descendants of modern-day fish with tails and gill slits.

2.The similarities suggest that vertebrates pass through each of the adult stages of their evolutionary history as they develop.

3.The similarities suggest that vertebrates can undergo genetic changes during development that lead to the evolution of new species.

4. The similarities suggest that chickens and humans descend from ancestors with genes that code for the development of tails and gill slits.

Answers

Answer 1

Answer:

4. The similarities suggest that chickens and humans descend from ancestors with genes that code for the development of tails and gill slits.

Explanation:

The common ancestor for humans and chickens is primitive reptile that lived about more than 310 million years ago. Humans and chickens were evolved from that primitive reptile due to changes occur in their body structure with the passage of time so that's why both humans and chickens have similar shapes, the presence of gill slits and tails at the embryo stage occur.


Related Questions

Ascomycota is an example of a kingdom.
O True
O False

Answers

Answer:

Im sorry this is all i know

Is ascomycota a parasite?

Most common moulds belonging to the Hyphomycetes are ascomycetes. ... They may be saprobes, parasites (especially of plants), or lichen forming, mostly terrestrial; cosmopolitan (50 orders, 275 families, 3328 genera, 32,325 spp). Ascomycetes are characterized by septate hyphae with simple pores.

Explanation:

Decide whether each statement describes saturated fat, unsaturated fat, or both saturated and unsaturated fats.
and please dont use pictures i cant see them

Answers

Answer:

Statement 1.) Both saturated and unsaturated fats.

Statement 2.) Saturated fat

Statement 3.) Unsaturated fat

Statement 4.) Unsaturated fat

Statement 5.) Both saturated and unsaturated fats.

Statement 6.) Saturated fat.

Explanation:

Fatty acids are straight chain carbon compounds of varying lengths. It is an important component of lipid in plant and animals. All fats are known to contain nine calories per gram, therefore can add to the weight of an individual. There are two type of fatty acids which includes:

--> Saturated fatty acids: these are fatty acids that contains no double bonds making it solid at room temperature. They are usually found in animal products such as milk, cheese and meat. They are absorbed in the villi of small intestine after digestion. One of the disadvantages of consuming diet rich in saturated fat is Saturated fats might increase LDL cholesterol levels. These are the bad cholesterol which are affected by inhibiting the LDL receptor activities leading to its increase. This can lead to heart disease conditions.

--> Unsaturated fatty acids: These are fatty acids which may contain one or more double bonds making it liquid at room temperature. They are found in plant oil (omega 6) and fish oil (omega 3). When consumed, they are absorbed in the villi of small intestine and helps maintain a good balance of cholesterol in blood.

Answer:

1.) Both saturated and unsaturated fats.

2.) Saturated fat

3.) Unsaturated fat

4.) Unsaturated fat

5.) Both saturated and unsaturated fats.

6.) Saturated fat.

Explanation:

plato

Which of the following statements about genes and traits is true?

--A single trait can alter multiple genes.
-- A single gene can control a single trait.
--A single trait can be controlled by multiple genes.
--A single gene can influence multiple traits.

Answers

Answers:

A single gene can control a single trait

A single trait can be controlled by multiple genes

A single gene can influence multiple traits

Answer:

Explanation:

Its literally everything but  A. That other person was wrong.

explain the Krebs cycle

Answers

Answer:

Explanation:

The Krebs cycle, named after 1953 Nobel Prize winner and physiologist Hans Krebs, is a series of metabolic reactions that take place in the mitochondria of eukaryotic cells. Put more simply, this means that bacteria do not have the cellular machinery for the Krebs cycle, so it limited to plants, animals and fungi.

Which statements accurately describe fermentation? Select two options.

Oxygen is present during this process.
Cells may convert pyruvic acid to lactic acid.
NAD+ is converted to NADH.
Fermentation is an anaerobic process.
Additional ATP is produced after glycolysis.

Answers

Answer:

fermentation is an anaerobic process

Explanation:

trust me

Answer:

b and d

Explanation:

just answered on edge lol

What part of the cell does translation occur?

Answers

Answer:

Translation occurs in the eukaryotes

Explanation:

I remember from taking biology as a freshman

Please please help me pleases please please I need help now please please help please please help me please please help please please help me please
This is the link
PLEASE PLEASE HELP ME

https://hub.jhu.edu/magazine/2015/summer/nursing-ethics-and-burnout/

Answers

Answer:

In every department of each health facility, nurses grapple with ethical challenges every day. Experts say that nurses face unique challenges because of long-term patient and family relationships.  sometimes unsustainable decisions are nursing caregivers.  "Nurses are often unable to choose patient care," says Rushton. Rushton. "Rushton says that the nation is at a crossroads in health," says a nursing and pediatrics professor. Some of these are serious situations. Johns Hopkins has initiatives and programs to stimulate ethics discussions, especially among nurses. Many hospitals have codes of conduct or guidelines which guarantee quality and safety, although fewer are ethical. Ethics can stay behind when nurses are busy, says Rushton. Initiatives are being developed in Kimmel Cancer Center to support nurses in tackling long-term cancer moral challenges. For students of the graduate school, the Johns Hopkins School of Nursing is specialized in ethics and theory. Students learn about their values and how to sympathize with those on the other side by engaging in debates and debates.

US Nurses Association that prepares to publish its report 50 health care leaders met for the First National Care Ethics Summit in Baltimore in August 2014. The resulting plan on the ethics of the 21st century lays down what can progressively be done to ensure that nurses are prepared. The nursing students of today are going to be nurses of tomorrow, says Rushton. He believes that the common voice of nursing workers can be mobilised in discussions with policymakers, hospital administrators, medical organizations and insurance companies in order to create a culture that values and promotes the practice of ethics. The ANA celebrated its release with 2015 as "the Year of Ethics"

Explanation:

Heres #1, on the 2nd question look for key ideas that lead to 4 ethical discussions. Good luck!

Which type of mixture is it, if the solid settles out of the mixture over time?
O suspension
o homogenous
o colloid
solution

Answers

Answer:

Suspension

Explanation:

A suspension is a heterogeneous mixture in which some of the particles settle out of the mixture upon standing. The particles in a suspension are far larger than those of a solution and thus gravity is able to pull them down out of the dispersion medium (water).

If the solids settle out of the mixture over time, such a type of mixture is called suspension.

A suspension is a heterogeneous mixture in which some of the particles settle out of the mixture upon standing.

What are the different types of mixtures?

there are mainly two types of mixtures that are:

homogeneous mixture

homogeneous mixture

A homogeneous mixture is a mixture throughout the solution in which the composition is uniform throughout the mixture.

A homogeneous mixture is a mixture in which the composition is not uniform throughout the mixture.

Hence,  a suspension is a heterogeneous mixture in which some of the particles settle out over time.

To learn more about the mixtures click here :

https://brainly.com/question/13729453

what is the anatomy of a bat's wing?

Answers

Answer:A bat has a much more flexible wing structure. It is very much like a human arm and hand, except it has a thin membrane of skin (called the patagium) extending between the "hand" and the body, and between each finger bone. Bats can move the wing like a hand, essentially "swimming" through the air.

Explanation:

Answer:

the bat wing

Explanation:

Need help ASAP please!

Answers

Answer:

1. adenine

2. guanine

3. sugar

4. phosphate

5.. thymine

6 phosphate

7sugar

8. cytosine

9phosphate

10. nucleotide base pair

Explanation: use AT-AT's from star wars to remember the pairing or that C and G look similar

Sea Anemones, algae and seaweed can be found at what part of intertidal zone?

a. lower intertidal

b. middle intertidal

c. upper intertidal

d. None of the above​

Answers

Answer:

Middle Intertidal

Explanation:

Middle Tide Zone: Also called the Lower Mid-littoral Zone. This turbulent area is covered and uncovered twice a day with salt water from the tides. Organisms in this area include anemones, barnacles, chitons, crabs, green algae, isopods, limpets, mussels, sea lettuce, sea palms, sea stars, snails, sponges, and whelks.

The function of Langerhans cells in the dermal layer is to:
A) increase blood circulation to the skin.
B) reduce heat loss of the skin.
C) reduce water loss of the skin.
D) increase the immune response of the skin.

Answers

D) increase the immune response of the skin.

I had a histiocytic cancer called Langerhans Cell Histiocytosis (LCH), so you can trust my answer. I know more than I should about this topic.

Answer:

D.) on edge

Explanation:

I just took the test

If Pat's has type A blood & his mom has type O blood which of the following blood
types must his dad have?

O Type O
O Type B
O Type AB

Answers

Answer:

type ab its more in formative

Pat's has type A blood & his mom has type O blood, the blood type of his dad must be the type AB blood. One of the parent must possess at least of copy of the A allele.  

For Pat having A type blood to have a mom with type O blood, it means, his genotype for the type A blood is heterozygous IAO. His mom's genotype is OO.

Therefore for a couple with the mom as OO to produce a child with AO, there are two scenarios; the father has to possess either AB or AA

If the father is AA and the mom is OO, their offspring could be all AO from the cross between the two.

                      A

        O          AO

If the father is AB and the mom OO, there is also there is also a 50% chance of producing a child with AO

                      A           B

         O        AO         BO

Learn more: https://brainly.com/question/16165447

Long term changes in altered ecosystems, such as recovery from a flood or fire, are called


HELP!!!

Answers

They are called Ecological Successions

Which of the following is NOT a property of water?

a
Frozen water floats on liquid water
b
Water covers most of the Earth's surface and retains a large amount of heat
c
Water molecules stick to each other through hydrogen bonds
d
Water cools very quickly

Answers

B pls do brainlyest
D. Water does float, as it is less dense, can take in a lot of heat and covers the majority of earth, and sticks to each other due to the polarity of water.

Water needs a big amount of energy added or removed in order to change phase.

Study island 7th grade

Answers

difference in genes

Answer:

c

Explanation:

hope this answer helps!

when an orginism is repredused by budding, how does the new organism start growing?

Answers

Budding is a type of asexual reproduction where the new organism (offspring) grows as an outgrowth from the body of the parent. Here, the new individual starts growing as a small body on one side of the parent organism and continues growing in size while still attached to the parent.

Early on, it appears as part of the parent given that it does not detach until it has grown further. Ultimately, the new individual, which resembles the parent, detaches and becomes an independent organism.

help please it is biology 1

Answers

Answer:

The answer is 50%

Explanation:

The rest of the answers are unreasonable

What happened to the organisms between the Cretaceous and Tertiary boundaries?

Answers

80% of all the species of animals at or near the boundaries became extinct

bacteria are often helpful because they​

Answers

Answer:

Yes it is helpful

Explanation:

Not only do we live in harmony with these beneficial bacteria, but they are actually essential to our survival. Good bacteria help our bodies digest food and absorb nutrients, and they produce several vitamins in the intestinal tract — including folic acid, niacin, and vitamins B6 and B12.

what are the main constituents of water​

Answers

Answer:

Pure water has 2 constituent

Hydrogen and Oxygen

1 water molecule has 2 hydrogen atom and 1 oxygen atom

i.e. [tex]H_{2}[/tex]0

Hope this helps you. Do mark me as brainliest

Constituents of water are hydrogen and oxygen hydrogen and oxygen :)

A women with type AB blood marries a man with type B blood. According to the punnet square, their children could have each of these blood types except

Answers

Answer:

They wouldn't have type A blood or type O blood because if you were to make the punnet square you will see that those two are the only types the child can't have.

Answer:

The children could have blood types A, B or AB. Its NOT possible for the children to have type O.

Explanation:

The question does not indicate whether the man with type B blood is BB or BO. Therefore there are two possible Punnett squares. As you can see from the attached image, a child could have AB, BB, AO, or BO. Since A and B are dominant over O the AO blood type results in type A blood and the BO blood type results in type B blood. AB would be type AB blood. and BB would be type B blood.

Give two features of cardiac muscles.​

Answers

Answer:

Cardiac muscles are involuntary muscles. They are involved in continuous rhythmic contraction and relaxation.

Cardiomyocytes or the cardiac cells are uninucleate, cylindrical, and elongated.

Cardiac muscles display faint cross-striations which do not get fatigued under normal circumstances.

Explanation:

Cardiac muscles are involuntary muscles. This means they are involved in continuous rhythmic contraction and relaxation.

Cardiomyocytes or the cardiac cells are uninucleate, cylindrical, and elongated.

Cardiac muscles display faint cross-striations. These do not get actitudes under normal circumstances

If a cubical cell with 2-cm sides doubles the dimensions of its sides, what relative change occurs to the ratio of its surface area to volume ratio?

Answers

Answer:

When the length of the side of the cube is doubled, the area increases by a factor of four while the volume increases by a factor of eight.

Explanation:

Surface area of a cube is given by the formula below:

Surface area of a cube = 6a²

Volume of a cube is also given by the formula below:

Volume of a cube = a³

Where a is the length of a side of the cube.

For the first cube, a = 2 cm

Surface area of the first cube = 6 * (2 cm)² = 24 cm²

Volume of the first cube = (2 cm)³ = 8 cm³

When the side length of the cube doubles, a = 4 cm

Surface area of the second cube = 6 * (4 cm)² = 96 cm²

Volume of the first cube = (4 cm)³ = 64 cm³

The ratio of the area and volume of the new cube is given below:

Area = 96 cm² / 24 cm² = 4

Volume = 64 cm³ / 8 cm³ = 8

Therefore, when the length of the side of the cube is doubled, the area increases by a factor of four while the volume increases by a factor of eight.

Oxygen dissolves in ocean water. Sponges living in the ocean acquire that oxygen by passing ocean water through their body walls so that oxygen is absorbed. Which three spheres interact in this example?

​​​​​​​atmosphere, biosphere, cryosphere

atmosphere, biosphere, hydrosphere

biosphere, cryosphere, hydrosphere

biosphere, exosphere, hydrosphere

Answers

I think it’s the second one

Answer:

D i think......

Explanation:

Explain a negative feedback loop for the control of blood glucose level?

Answers

If the blood glucose level is too low, the pancreas releases the hormone glucagon. This travels to the liver in the blood and causes the break-down of glycogen into glucose. The glucose enters the blood stream and glucose levels increase back to normal. This is an example of negative feedback.

Pseudopodia are used for
Group of answer choices

conjugation.

movement.

reproduction.

mitosis.

Answers

Answer:

movement

Explanation:

This is mostly used protoctists like amoeba

What might an organism do if there is a change to its ecosystem

Answers

Answer:

It will most likely adapt to the change or go to a different place if the change is too extreme for the organism to handle.

Explanation:

What is an example of a phenotype

A) The genetic makeup of a trait
B) The replication type
C) The type of mutation
D) The expression of a trait

Answers

I believe the answer is A.

Many cities build special construction joints in bridges to allow for the expansion and
contraction of the bridge during changes in temperatures known as thermal
expansion. What type of movement in the bridge could be expected during a warm
front in the summertime?
A
The bridge would experience no changes,
B
The bridge would contract due to the particles would be moving closer together,
С
The bridge would be closed during the warm front due to cracking in the concrete.
D
The bridge would expand due to the particles spreading out.

Answers

D i think is the answer.
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