Ecology (Test 1) Study Guide Answers

1. Individual - one organism; Population - a group of the same organism; Community - all living (biotic) factors in an area; Ecosystem - all the living and nonliving (abiotic) factors in an area; Biome - similar ecosystems (example: desert, tundra, rainforest); Biosphere - where all life exists on earth.
2. (we'll go over this in class)
3. (we'll go over this in class)
4. population, abiotic factors, ecosystem, biosphere, biotic factors
5. A food web shows ALL of the feeding relationships within an ecosystem. A food chain only shows a partial (linear) pathway of energy.

Predator Prey Relationship

1. Increasing
2. Increasing
3. As the moose population increased, there was more food available for the wolves which in turn resulted in the increase of the wolf population.

Unit 1 Study Guide Answers

• Hair is tied back
• Closed toed shoes
• No loose clothing

2.

• Run water over your skin for at least 5 minutes.

3. Gram

4. Meter

5. Liter

6. 0.00352 km

7. 24L = 24 L (this was a typo - sorry!)

8. a. 1 cm

b. 1 KL

c. 10 g

9. a. coffee

b. time to complete problems

c. group b (no special treatment)

d. they complete the same problems, same age, same level of math

10. a. Does drinking milk affect growth rate?

b. Milk causes increased growth.

c. 10 randomly chosen babies with the same birthdate. After they turn 5 years old, Group drinks 2 cups of milk every day. Group B drinks 2 cups of water instead. Measure growth after 10 years.

11. cohesion (water sticking to itself)

12. high specific heat (water's ability to absorb heat)

13. adhesion - water sticking to other molecules; cohesion - water sticking to other water molecules.

Unit 1 Notes

Scientific Method

Metric System

Graphing

Properties of Water