Question

LESSON 8 BIOLOGY A UNIT 2 CONNEXUS
1. which of the following are biotic factors and which are abiotic factors? (1 point)
ANSWER: B

2. why is it useful for an ecologist to identify the keystone species in an ecosystem? (1 point)
ANSWER: C

3. competition over resouces occurs between organisms (1 point)
ANSWER: C

4. the lowest trophic level in an ecosystem (1 point)
ANSWER: B

5. what is true of the energy that is passed from one trophic level to the next in a food chain? (1 point)
ANSWER: B

6. autotroph is to producer as heterotroph is (1 point)
ANSWER: B

Answer 1

why did you give us the answers on you homework?

Answer 2

7. which of the following is true of population cycles? (1 point)
ANSWER: B

8. an example of a pioneer species is (1 point)
ANSWER: B

9: why are human disturbances often of more concern than natural disturbances? (1 point)
ANSWER: A

10. suppose a particular community is concerned about a fox population that kills and eats chickens on the local farms. What is the best course of action by the community? ( 1 point)
ANSWER: D