1. 1.D
2.A
3. B
4. B
5. D
6. A
7. A

2. 8.B
9. D
10. C
11. B
12. A
13. C
14. C

3. 15. C
16. C
17. C
18. A
19. D
20. C
21. A

4. 22. D
23. D

5. 1. Organism and Species
An organism is any living thing and a species is a group of organisms that can interbreed and reproduce offspring.

6. 2. Living and Nonliving grow
Nonliving things grow by adding more of the same matter it is made of.
Living things grow by adding more cells.

7. 3. Mrs. Smith experiment
A. Group B
Because you know it will grow a little because it doesn't get the chemical

8. Because you can manipulate it and add the amount you want
3. Mrs. Smith experiment
B the special chemical
Because you can manipulate it and add the amount you want

9. C. The growth of the plant
3. Mrs. Smith experiment
C. The growth of the plant
Because the amount depends whether you use the special chemical or not and you cant control/manipulate it

10. 3. Mrs. Smith experiment
D. Based on the amount of growth, Mrs. Smith can conclude that the chemical helped increase the growth of the plant.