Title: Unit 9 Quiz
Course: SAT 100 Principles of Agroecology > Section: SAT 100 Principles of Agroecology

Q: Parasitism is when one organism feeds off another, killing the other organism.
- True
- False
A: False

Q: Allelopathy is defined as _____.
- production of a compound to alleviate stress
- production of a compound produced by a plant when released stimulates or inhibits other organisms
- a substance needing another plant in order to survive
- a compound having no effect, positive or negative on other plants
A: production of a compound produced by a plant when released stimulates or inhibits other organisms

Q: Biotic factors include _____.
- living organisms that alter other plants
- materials created by living organisms
- the development of area enhanced by Oden
- All of the responses are correct
A: All of the responses are correct

Q: Interactions effects are always positive or negative.
- True
- False
A: False

Q: Amensalism _____.
- has a positive impact on other organisms
- harms itself
- does not benefit itself
- None of the responses are correct
A: None of the responses are correct

Q: Interferences can only occur as an addition or removal; they cannot occur at the same time.
- True
- False
A: False

Q: Which cover crops have shown the ability to control weeds?
- rye
- corn
- alfalfa
- non-grain sorghum
- All of the responses are correct
A: rye

Q: Control of invasive weed varieties is possible using allelopathy methods.
- True
- False
A: True

Q: Photocooperation is _____.
- non-obligatory
- essential for each organism
- no longer exists
- All of the responses are correct
- • Only non-obligatory AND essential for each organism responses are correct.
A: • Only non-obligatory AND essential for each organism responses are correct.

Q: There are two types of interferences. Which type is generally helping other organisms?
- addition interference
- removal interference
- reducing interference
- adjusting interference
A: addition interference