Biotic Factros Flashcards
1
Q
What is an biotic factor
A
Living features of an ecosystem
2
Q
What are the biotic factor which affect population size
A
Competition
Predators prey
3
Q
Intrapsecifc competion
A
Competition between members same species
4
Q
Interspecific
A
Competition between members different species
5
Q
What resources may organisms compete for
A
Food, water, shelter, mineral, light
6
Q
What will happen to a. Population is here are more resources
A
There will be a large population
7
Q
Describe competitive exclusion principle
A
When 2 species are in competition, one will ultimate outcompete the other as no two species can inhabit the same niche
8
Q
Describe a predator prey relationship in terms of population change
A
- prey is Eaton by predator, resulting in predator population increasing and prey population decreasing
- fewer prey means increased competition for food so predator population decreases
- fewer predators means more prey survives and the cycle begins again
