Describe gastrulation. Why are the three layers important in development?​

Answers

Answer 1

Explanation:

Cells in each germ layer differentiate into tissues and embryonic organs The ectoderm gives rise to the nervous system and the epidermis, among other tissues


Related Questions

Help me on question 5 please!!

Answers

Hello, I believe this is the answer;

After 2 half-lives: 1000 atoms.

After 4 half-lives: 250 atoms.

Hope this helps :)

Which of the following statements about Newton's second law is false?
A. The acceleration of an object is directly proportional to the net force applied on the object.
B. The acceleration of an object experiencing a constant net force is inversely proportional to its mass.
C. Objects with a small inertia are harder to accelerate than objects with a large inertia.
D. Increasing the net force applied to an object increases the acceleration of the object.

Answers

Answer:

C. Objects with a small inertia are harder to accelerate than objects with a large inertia.

what is dna ? and what is the purpose of dna

Answers

Answer:

Deoxyribonucleic acid (DNA) is a nucleic acid that contains the genetic instructions for the development and function of living things. All known cellular life and some viruses contain DNA. The main role of DNA in the cell is the long-term storage of information.

Explanation:

-Eijiro <3

First, it has to be able to make copies of itself because you're making new cells all the time and your cells have to have a copy of your DNA so it has to do what we call replication.

It also has to store all the information about your body as far as your body chemistry, your proteins, your amino acids, and all the things that make you.

One more very important job of DNA is that it's responsible for this process called protein synthesis which is the process in which cells make proteins. So every piece of your body from your fingernails, your eyeballs, and many other things are made up of proteins, proteins are the building blocks of you and the DNA determines the shape and function of your proteins. You think of DNA as a set of instructions on how to make the proteins that make you.    

A ph ______ than 7 is acidic because they have more _____ ions than ______ ions.

Answers

Answer:

A ph base less than 7 is acidic they have more h30+ ions sorry that all I know

Which statement about the structure of DNA is NOT true?

Long strands of DNA are twisted in the form of a double helix.
Long strands of DNA are twisted in the form of a double helix.

DNA contains four different nitrogen bases including adenine, guanine, cytosine, and uracil.
DNA contains four different nitrogen bases including adenine, guanine, cytosine, and uracil.

DNA is made of linked nucleotides which are each made of a sugar, a phosphate and a nitrogen base.
DNA is made of linked nucleotides which are each made of a sugar, a phosphate and a nitrogen base.

DNA consists of two strands joined together by complementary base pairing.

Answers

Answer:

DNA contains four different nitrogen bases including adenine, guanine, cytosine, and uracil.

Uracil is in RNA not DNA

Answer:

DNA consists of two strands joined together by complementary base pairing.


Question 4 (1 point)
Low-mass main sequence stars often exceed the Chandrasekhar Limit
O True
O False

Answers

I am going to take a guess based off of my earth science knowledge and say it is false. Sorry if I'm wrong.

Compare and contrast relative with absolute (radiometric) dating. In your response, include the following:
- What is each type of dating (describe it in words)

- Provide an example of each type of dating

- Discuss the advantages/disadvantages to each type of dating. In other words, under which circumstances should you use each?

- What do the different types of dating have in common? How are they different?

Answers

Answer:

They all are the same the difference between them is they are used for different reasons

When Christopher Columbus came to the Americas, he randomly chose 3 chickens from Spain to bring along. These 3 chickens were the only chickens to breed
in the Americas for hundreds of years. Which term below does this BEST represent?
A. Natural Selection
B. Bottleneck Effect
C. Hardy Weinberg Equilibrium
D. Founder's Effect

Answers

Answer:

A






EXPLANATION

Please help if you answer correctly i will give brainliest

Answers

Answer:

1) Chicken: Codominance

2) Zebra: Independent assortment

3) Flowers: Incomplete dominance

4) Dalmatian: Law of segregation

Explanation:  

Due to technical problems, you will find the complete explanation in the attached files

Which kind of rock would most likely form from the process shown in the picture? HELPPP !!

Answers

Answer:

B

Explanation:

Answer: B

you were correct :) it's sedimentary

sedimentary rocks are created by erosion, weathering, dissolution, precipitation, and lithification

HELLLPPPPPPPP HURRRRYY

Answers

Answer:

b is the answer its theory of use and disuse

*Edit* its d i made a mistake

Answer:

In terms of the giraffe example, Darwin's theory of evolution through natural selection would suggest that a giraffe was born with a longer neck by random chance. ... Having access to more food allowed the giraffe to live longer and reproduce more, ultimately leading to more long-neck giraffes.

Explanation:

So, your answer would most likely be A!

-Eijiro <3

What cells are in the Digestive system

Answers

Answer: Mucous cells: secrete an alkaline mucus that protects the epithelium against shear stress and acid.

Parietal cells: secrete hydrochloric acid.

Chief cells: secrete pepsin, a proteolytic enzyme.

Explanation:

Does papa love mombo?​

Answers

I’m not sure what this means please elaborate

Explain how sulfur mining affects plant life.

Answers

Although the landscape shows a certain ability to persist, underground mining activity has caused some effects such as ground fissures (cracking), disturbance of the vegetation community and damage to strata.

Surface mining destroys all plant life in the area the mine occupies. Plants living in the area where the surface mine is to be located are removed. After the surface mine is no longer productive, plants may eventually return to the area, but typically some human efforts at reclamation are required to restore the environment to some level of productivity.

Please mark brainliest

. Which statement best expresses the central idea in the article?
A. Scientists have discovered a way to prevent genetic defects in babies, but some believe genetic development should be left to nature
B. Scientists have discovered a way to prevent genetic defects in babies, but some worry that the process could be used for great economic gain
C. Scientists have discovered a way to prevent genetic defects in babies, but the method is against many families’ religions
D. Scientists have discovered a way to prevent genetic defects in babies, but the process is still very risky

Answers

Answer:

I believe the Answer is D

Explanation:

Mainly because b, c, arent very logical and A is also a decent choice but i believe d is the answer

Do you think a solar furnace could work well where you live?

Answers

Answer:

i thank we could use one

Explanation:because we don't really have cold weather in okc

hope it helps ☺

Why is it important that courts create the expectation that business will be
conducted fairly?

Answers

Finally courts create expectations for future actions. This is very important if you want to do business with someone. If you know that you'll be punished for cheating a potential business client you're less likely to do it.

PLZZZ HELPPPPPPPPPPPPPPPPP!!!

Answers

Answer:

Explanation:

#5, The formula is for photosynthesis, you can tell because it produces glucose (C6H12O6) And it uses light. Circle everything after the arrow since those are the products produced by the plant.

#6 is cellular respiration because it’s turning glucose into energy. Again circle everything after the arrow!

Name 3 BIOTIC things in this photo of the ecosystem. PLEASE HELP

Answers

Answer:

3 biotic things in the above photo are-

AnimalsBirdsPlants

What is the effect of inputting stem cells instead of body cells into the original system?

Answers

Explanation:

Stem cell research indicates that s.cells are cells that are not fully developed; in turn if researchers inject a patient with type 1 diabetes into the pancreas the result is that the pancreas produces it's own insulin eliminating the chances of spikes in the blood sugars of the patient & also long term effects of high blood sugars that effect all vital organs & nervous system.

Researchers were also using stem cells to limbs that were amputated or damaged resulting in the limb regenerating itself.

I have seen a mouse that had a human ear attached to its body.

Researchers were ordered by our government to cease the experiments because pharmaceutical companies were making more $$ on medicines to supposedly help diabetics or veterans to live a normal life..

what is a number n3=512

Answers

Answer:

Roughly n = 171

Explanation:

512/3 = 170.666666667

the round it to the nearest tenth which is 171, So N is roughly 171

Hope this helped

Explanation:

Given

n³ = 512

Putting cube root on both sides we get

³√n³ = ³√8³

Therefore n = 8

Hope it helps :)

Unarected
Umected
daughter
Carner
daughter
Anected
son
In humans, as well as in many other animals and some plants, the sex of the individual is determined by sex chromosomes.
The sex chromosomes are one pair of non-homologous chromosomes. XX represents a female, while XY represents a male
When a gene for a specific trait is attached to the X or Y chromosome, we say it is sex-Linked, and when it is attached to the X
chromosome, we say it is X-linked. Alleles for these linked traits, such as hemophilia on color blindness, crosses, may be
recessive or dominant
This is one possible cross (above) for the X-linked condition known as hemophilia. Which pair of parents is most likely to have a
hemophiliac daughter?
Time
Remaining
00:06:49
-
carrier mother and unaffected father
5
carrer mother and hemophiliac father
opac mother and a carrier father

Answers

Answer:

Tbh i have that question too

Explanation:

HELP ME!!!

Complete the Food Web
(Add the arrows to show the transfer of energy)

Answers

The mice to grass
The bunny to grass
The snake to mice
The eagle to snake
I think
Grass is eaten by the mouse and the bunny. The mouse, snake and the bunny can be eaten by the eagle. And the mouse can be eaten by the snake.

PLEASE HELP ME!!!!!


What is the relationship between mutation, the cell cycle, and cancer? Select all statements that apply.

A. Mutated genes typically allow cells to respond to checkpoint proteins that halt the cell cycle, thus avoiding formation of tumors.

B. As a result of unregulated cell cycles, cells may become cancerous, meaning that the cells grow and divide uncontrollably.

C. Cancerous cells may form malignant tumors that invade and destroy surrounding healthy tissue.

D. Mutated, defective genes may cause cells to become unable to respond to signals that regulate the cell cyle

Answers

Answer:

i think its D :)

Explanation:

What are disadvantages of the "Aoudad"?
PLEASE ANSWER ASAP!!

Answers

Answer:

Anecdotal reports suggest aoudad out compete native big game species for food, water, and cover as well as act as a disease reservoir on Texas landscapes. If significant overlap for resources and space are occurring among aoudad, desert bighorn and mule deer, aoudad could outcompete and outgrow native populations.

Explanation:

Aoudad are a hardy desert sheep, native to the coastal and some inland mountains of northern Africa. While considered vulnerable in their native ranges, aoudad are abundant in the mountains of the Trans-Pecos. Little is known about their ecology in their newfound ranges, though considerable evidence suggests that they are susceptible to numerous diseases which affects native wildlife.

TRUE OR FALSE
1.Body covering of animal such as fur,feather,and hair are used for protection
2.land animals have gills for breathing.
3.Worms breath through their skin.
4.all land Animals have two Pairs of legs.
5.The elephant Has thick skin to prevent injuries from enemies.​

Answers

Answer:

1.true

2.true

3.true

4.false

5.true

What theories of intelligence relies on the sensitivity to other people’s feelings and the ability to respond to them?

A. Emotional Intelligence by Daniel Goleman and Gardner's Theory of Multiple Intelligences

B. Emotional Intelligence by Daniel Goleman

C. Gardner's Theory of Multiple Intelligences

D. Neither

Answers

Answer:

D

Explanation:

How do you get rid of homologous chromosomes?

Answers

Answer:

hear is the answer hope it helps

what are the two biggest planets on earth

Answers

Answer:

️ ️

Explanation:

75 points to the person marked brainiest!!!

Read the following scenario and student explanations. Then, respond to the following questions.

A 7th grade teacher had students construct an explanation comparing and contrasting Plants and Fungi. The explanations of two students are below.

Student A: Plants and fungi are similar in that organisms in both kingdoms have the following characteristics: grow from the ground, have a nucleus, are unicellular and multicellular, and have a cell wall. However, they differ because plants can make their own food, but fungi cannot.

Student B: Plants and fungi have some characteristics in common such as being multicellular, having a nucleus and a cell wall. But, fungi are different from plants because they get their nutrients from other organisms, but plants make glucose as their food.

Which student’s explanation is the least accurate?

Student ______________

How would you change this student’s explanation to make it more accurate? Write at least five sentences.

Answers

b is the it.........................

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