Unit 7 A Ecology Review Sheet

Vocabulary

abiotic

autotroph

biodiversity

biosphere

biotic

carnivore

carrying capacity

community

competition

consumer

decomposer

ecological niche

ecological succession

ecology

ecosystem

energy pyramid

environment

food chain

food web

habitat

herbivore

heterotrophe

host

limiting factors

parasite

population

predator

prey

producer

scavenger

succession

Essential questions

1. In a food chain, which organisms are the producers and which are the consumers?

2. What organisms are often missing from food webs?

3. How does the preditator/prey oscillation curve impact the stability of an environment over time?

4. Unscramble the following from small to large: ecosystem, organism, biosphere, population

5. Where does all the energy that flows through an ecosystem originate?

6. What happens to an increasing population of organisms once it reaches carrying capacity?

7. What are biotic and abiotic resources that organisms might compete over?

8. How are populations different from communities?

9. What is a good way to measure the biodiversity of an area?

10. How would removing carnivores effect the population of herbivores in an area? Would this be considered to be a more or less stable condition?

11. Which type of organism is found at the bottom of the energy pyramid? Where are the herbivores and carnivores located?

12. How does a scavenger differ from other carnivores?

13. How does decreasing the number of autotrophs effect the population of animals higher up on the energy pyramid?

14. How does the introduction of invasive species affect the populations of animals or plants they feed on?

15. How does the available energy change as you go up the energy pyramid?

16. How does biodiversity and population levels change as you approach the equator?

17. What are the three main types of symbiosis and be able to give examples.

18. What is ecological succession and how do plant communities change over time?