3.3

Question 1

Trophic Levels

Answer 1

each of several hierarchical levels in an ecosystem, comprising organisms that share the same function in the food chain and the same nutritional relationship to the primary sources of energy.

Question 2

Autotroph vs heterotroph

Answer 2

Autotrophs are producers who prepare their own food. Heterotrophs are consumers who depend on other sources for their food

Question 3

Herbivore vs. Omnivore vs. Carnivore vs. Detritivore

Answer 3

Herbivore eats plants
Omnivore eats both plants and meat
carnivore eats meat
detrivore eats dead things

Question 4

Keystone species

Answer 4

an organism that helps define an entire ecosystem

Question 5

Trophic cascade

Answer 5

Trophic cascades are powerful indirect interactions that can control entire ecosystems, occurring when a trophic level in a food web is suppressed

Question 6

Describe differences between food web and trophic cascade diagrams

Answer 6

food web shows what animals eat

trophic cascade diagram shows how animals affect each other