Why do scientists use models?

a. Scientists use models to learn about things that are too small, too large, or too complex to observe directly.

b. Scientists use models because doing so is always part of the scientific method.

c. Scientists use models because they always work exactly like the systems they represent.

d. Scientists use models so they have an opportunity to work with their hands.

Which of the following is not a model?

a. an ant farm

b. a bicycle

c. an atlas

d. a plastic human skeleton

My answers are a and b.

for 20 questions are

1.A
2.B
3.C
4.D
5.C
6.B
7.B
8.D
9.C
10.A
11.C
12.C
13.D
14.type "skeptical"
15.type ''inference"
16.type "invention
17-20 your own answers:(

The answers are

A
B
B
D
D
100%

The answers are

A
B
B
D
D
100%

My test is 20 questions!!!

Savanna ooOoh nahhhh naahhh thanks got 100%

17 20 what did yall put

Is this correct?

I think the answer is A because because scientist scientist does need some models to learn about new things and the truth about them but scientist could use all sourts of models even humans ,elaphant ,dogscats,zoo animals,food any model is a good model some scientes even have to use tools to see some small things uo close like carbohydrate which is one or more sugar molecules just like adom they combined a group but the best model to me would be a ant farm but would not be a model is b and c one day I know I will be a scientist piece out.

Thanks Savanna

thank you