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2 years ago

Plant cells, unlike animal cells, are characterized by the presence of a ________.

Biology

1 answer:

expeople1 [14]2 years ago

8 0

B. Cell wall and a central vacuole

The cell wall is a rigid structure that surrounds the cells and allows plants to stay upright. Animal cells are more fluid.

The central vacuole is a large region in the cell that stores nutrients and fluids. Many cells, including animal cells, contain vacuoles, but most are small, and only plant cells contain large central vacuoles.

Hope this helps!!

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What is the main difference between adult and embryonic stem cells

Nataliya [291]

Answer:

A variety of adult stem cells can be found, but embryonic stem cells are derived from the three germ layers. The main difference between adult and embryonic stem cells is that adult stem cells are multipotent whereas embryonic stem cells are pluripotent.

HOPE THIS HELPS, HAVE A GREAT DAY!!~

Explanation:

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2 years ago

What is one reason it is necessary for humans to eat saturated fats

Anestetic [448]

one reason it is necessary for

humans to eat saturated fats is for protein

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2 years ago

What is an advantage of using fossil fuels to generate electricity? Using wind power is less expensive than burning coal. Fossil

7nadin3 [17]

I’d say B is the best choice

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-AaronWiseIsBae

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3 years ago

Read 2 more answers

Which is not a sign of FAS?

igomit [66]

Flat face I believe is your answer

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3 years ago

Read 2 more answers

Part A: If one follows 70 primary oocytes in an animal through their various stages of oogenesis, how many secondary oocytes wou

olga nikolaevna [1]

Answer:

Part A : 70 secondary oocytes will be formed.

Part B : 70 first polar bodies will be formed.

Part C : 70 ootids will be formed.

Explanation:

During oogenesis growth maturation of a single oogonium produces one primary oogonium.

the primary oogonium then undergoes meiosis -1 and produces one secondary oocyte and first polar body.

The secondary oocyte then undergoes meiosis - 2 and forms an ootid and second polar body.

The ootid then differentiates into the ovum.

As in the above scenario , 70 primary oocytes are present , they undergo meiosis-1 and produces 70 secondary oocytes and 70 first polar bodies. Hence answers of part A and B is 70.

As 70 secondary oocytes are formed , they undergo meiosis -2 and forms 70 ootids which then differentiate in 70 ovums.

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3 years ago