3.3

Question 1

What is the difference between an autotroph and a heterotroph?

Answer 1

An autotroph produces its own energy/food through processes such as photosynthesis, while a heterotroph eats other organisms for energy (can be herbivores or carnivores).

Question 2

Herbivore vs. Omnivore vs. Carnivore vs. Detritivore

Answer 2

Herbivores only eat plants, omnivores eat plants and animals, carnivores only eat other animals, and detritivore eat discarded scraps from other animals.

Question 3

Keystone species

Answer 3

Important species that, when removed, have a drastic and negative effect on their ecosystem.

Question 4

Trophic cascade

Answer 4

The manner in which species directly or indirectly impact each other.

Question 5

What is the difference between a food web and a trophic cascade?

Answer 5

A food web shows which organisms each which other organisms. A trophic cascade shows all relationships (direct and indirect) between species in a community.