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makkiz [27]
2 years ago
10

Help me please ill mark you as brainlest

Biology
2 answers:
Bezzdna [24]2 years ago
8 0

Answer:

12.) Is B

15.) Is A or C

Explanation:

Sati [7]2 years ago
8 0
12- the answer is B
15- the answer is C
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You did not write the concept, so i will try to answer in a general way.

Why sometimes we really need to model concepts?

Well, sometimes the things are really complicated, or we just do not have the knowledge or tools to fully understand them.

Here is where the models came to be handy, we can somewhat "simplify" the things, and explain them with models.

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