1
_____________________ is All parts of Earth and its atmosphere where life exists
biosphere
A _________________ is anything that restricts the size of a population
limiting factor
_________________ is the hunting of animals for food
predation
___________________ is A species whose population is at risk of extinction
endangered species
A ______________________ is All organisms of the same species in an area at the same time
population
How do elephants demonstrate overpopulation in African game reserves?
By damaging trees and affecting other species' habitats
What can cause a population size to decrease? (name at least 2)
disease, natural disaster, lack of resources, etc.
How do predators affect an ecosystem?
help control population sizes
______________ species have completely died out with no individuals left
extinct
___________________________ is the largest number of individuals of one species an ecosystem can support over time
carrying capacity
What happens when a population exceeds its carrying capacity?
The population causes damage to the environment
A ___________________ is all the populations of different species living together in the same area
community
__________________________ is the potential growth of a population in perfect conditions with no limiting factors
biotic potential
What is the difference between endangered and threatened species?
Threatened species are at risk but not yet endangered
Which is not a limiting factor?
Temperature
Available Food
Moonlight
Disease
Moonlight