1. Living Things Interact Review
Unit B Chapter 2
Living Things Interact
Review

2. A single organism living in an environment is?
Individual

3. All the populations of organisms living together in an environment are?
Communities

4. Some animals eat off of more than one consumer level.
True or False
Some animals eat off of more than one consumer level.
True

5. Living things that must eat to gain energy are?
Consumers

6. What shows the relationship between many different food chains in one ecosystem?
Food Web

7. Human activity can cause a decline in populations of organisms.
True or False
Human activity can cause a decline in populations of organisms.
True

8. What shows how consumers in an ecosystem are connected to each other based on what they eat?
Food Chain

9. Consumers that break down decaying tissue.
Decomposer

10. True or False
Instinctive behaviors include building shelter, finding mates, and hunting.
True

11. A non-native organism
Exotic

12. True or False
Hurricanes and floods are examples of natural causes for population decline.
True

13. A community and its physical environment would be known as an ___________.
ecosystem

14. True or False
Only 10% of the energy from one level of the energy pyramid will be passed on to the next level.
True

15. A long term relationship between different kinds of organisms.
Symbiosis

16. Place in an ecosystem where each population lives.
Habitat

17. BOTH organisms benefit in mutualism!
True or False
In a relationship of mutualism, two organisms work together while only one benefits.
False
BOTH organisms benefit in mutualism!

18. Organisms that produce their own food through photosynthesis.
Producers

19. Pesticides are a natural cause for population decline.
True or False
Pesticides are a natural cause for population decline.
False

20. Individuals of the same kind living in the same environment.
Population

21. True or False
It is not possible for animals to eat from the same food source without competing.
False