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3 years ago

What are some examples of internal structures that allow organisms to survive in their environment?

2 answers:

7 0

Plants and animals have many structures that help them survive. Some structures are internal, like the lungs, brain, or heart. Other structures are external, like skin, eyes, and claws. Some structures are unique, like the long neck of a giraffe.

Mila [183]3 years ago

5 0

Lung brain and heart are correct

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Emigration happens when individuals move ___________a population, while immigration happens when individuals move ______________

weeeeeb [17]

Emigration happens when individuals move outwords a population, while immigration happens when individuals move inwords a population.

Emigration : Emigration is the relocation or process of people leaving one country to reside in another. People emigrate for many reasons, include increasing one's chance of employment or improving quality of life.

Immigration : Immigration is the international movement of people to a destination country of which they are not natives or where they do not possess citizenship in order to settle as permanent residents or naturalized citizens.

To learn more about Immigration and Emigration refer : https://brainly.in/question/139881

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2 years ago

The organelle identified in the picture as #10 helps the cell maintain homeostasis in what way? This organelle is the smaller wh

motikmotik

Where the picture but,The Plasma membrane maintains the homeostasis throughout a cell because it filters what substances go in and out of the cell.

7 0

3 years ago

Read 2 more answers

Need help with biology

garri49 [273]

Explanation:

1. Barr body is a drumstick-like structure of dense, coiled chromatin that appears normally in female's buccal cells and neutrophils. It represents the inactive X-chromosome (Females have two X-chromosomes. Only one is active.)

2. Liver cells are somatic, not sex cells and are thus diploid.

4 0

3 years ago

A couple plans to have children until they get a boy, but they agree that they will not have more than four children even if all

DiKsa [7]

Answer:

1.875 is the expected number of children the couple will have.

Explanation:

The probability of an event X is denoted by P(X).

Let assume that X is the number of children to whom the couple will give birth. The couple can have at most four children with the following probabilities.

The couple will have one child if the first is boy, thus:

For one child P(X)=1/2=0.50

The couple will have two children if the first is girl and the second is a boy, thus:

For two children P(X)=0.5×0.5=0.25

The couple will have three children if the first two are girls and the third is a boy, thus:

For three children P(X)= 0.5×0.5×0.5=0.125

The couple will have four children if the first three are girls and the fourth is a boy, or if all the four are girls. thus:

For four children P(X) =(0.5×0.5×0.5×0.5)+(0.5×0.5×0.5×0.5)=0.125

Now calculating the expected number of children the couple will have:

NOTE: Formula is given in the attached pic

Expected number of children = E(X)= (1×0.50)+(2×0.25)+(3×0.125)+(4×0.125)

E(X)= 1.875

5 0

3 years ago

What are the four types of organic compounds?

timofeeve [1]

Answer:

Nucleic Acids Proteins Carbohydrates

Lipids

Explanation:

All organisms need four types of organic molecules: nucleic acids, proteins, carbohydrates and lipids; life cannot exist if any of these molecules are missing.

8 0

4 years ago