1. Chapter 4-3 predation, herbivores and keystone species
By: Noelle Yip
Emily Kuo
And Lillian Xue

2. Vocab
Predation- an interaction in which one animal (the predator) captures and feeds on another animal (the prey).

3. Predation
Biological interaction where predator feeds on prey.Eg: Lions and gazelles, polar bears and seals, humans and cows, snakes and deer.

4. Herbivory- is an interaction in which one animal (the herbivore) feeds on producers (EG. Plants).

5. Herbivory
Interaction where animal (herbivore) feeds on producers (plants).
Eg: Aphids and plants, horses and plants, and rabbits and vegetables/plants.

6. Keystone species- changes in population of a single species, which can lead to dramatic changes in a structure of a community.

7. Keystone Species
Keystone species is a species that has an unequal effect on its environment relative to its biomass. Eg: Grizzly bear, elephants, jaguar.

8. sources textbook section 4-3