19.4 Predation Flashcards
define predator
organism that feeds on another organism
define prey
organism being fed on by another organism
define predation
when one organism is consumed by another
what is there always a bigger population of (predation)?
the prey
what happens to the prey population when predators eat them?
it’s reduced
what happens when the prey population is decreased?
greater competition between predators for food
what happens to the predator population if comp is increased between them?
it’s reduced due to some not being able to obtain enough prey for survival
what happens to prey population when predator population decreases?
it increases
what are populations like in a stable community
it increases and decreases in cycles
= limited population size of prey and predators
