SCIENCE

2. The study of interactions between organisms and their environment is called_____
4. What is the hormone responsible for causing sudden emotional changes and sexual feelings that occur in males during puberty?
5. The breaking down of rocks on the earth's surface is _____
6. Which of the following nutrients is used to build and repair cells?
9. If fish are caught faster than they can breed, what will happen to the population?
10. Which body system pumps and transports the blood to all parts of the body as well as supply oxygen and remove waste products from body tissues?
11. Which term refers to the number of protons in an atom and helps to place elements on the Periodic Table?
14. Which subatomic particle is NOT found in the nucleus of an atom?
15. Which subatomic particle has a positive charge?
16. On the Periodic Table, all elements that are in the same horizontal rows are considered to be in the same ______

1. This structure, found in cells, assembles proteins.
2. A species in danger of becoming extinct in the near future is referred to as a(an)_____ species.
3. What day is it when the sun is at its lowest elevation in the sky all year and we experience the shortest day of the year?
7. Which organelle contains nearly all of a eukaryotic cell's DNA?
8. On the Periodic Table, elements that are in the same vertical column are considered to be in the same_____
11. Which area of Earth science includes the study of stars?
12. In addition to food, what else does a mitochondrion need to release energy?
13. The longest phase of the cell cycle is ______