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Ira Lisetskai [31]
3 years ago
15

What comes to mind when you hear the term “9 + 2? ​

Biology
1 answer:
leva [86]3 years ago
4 0

my mind is blank totally blank

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All you need is in the photo ​
lutik1710 [3]

Answer:

a

Explanation:

8 0
3 years ago
What occurred during the Cambrian explosion? How is this significant in terms of common ancestry?
tia_tia [17]
The Cambrian Period marks an important point in the history of life on Earth; it is the time when most of the major groups of animals first appear in the fossil record. This event is sometimes called the "Cambrian Explosion," because of the relatively short time over which this diversity of forms appears
6 0
2 years ago
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:

<u>Part A</u> : 70 secondary oocytes will be formed.

<u>Part B</u> : 70 first polar bodies will be formed.

<u>Part C</u> : 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.

8 0
4 years ago
Plants have glucose, but what else does the plant need in order to build carbohydrates or to carry out photosynthesis?
tester [92]

Answer:

Explanation:

They need to have sunlight and carbon dioxide in order to produce glucose and oxygen

7 0
3 years ago
Which structure is at work when the body deals with reflex actions? the heart the brain stem the vertebral column the spinal cor
Katarina [22]
The spinal cord I think :)
8 0
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Read 2 more answers
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