unit 3 life on earth Flashcards
what is an ecosystem
consists of all the organisms (the community) living in a particular habitat AND the non-living components with which the organisms interact
what is biodiversity
range of species living within an ecosystem
what is a population
the number of species
what are species
a group of organisms which can interbreed to produce fertile offspring
what is an omnivore
eats both meat and plants
what is a carnivore
an animal which feeds on other animals
what is a herbivore
only eats plants
what is prey
an animal that is hunted and killed by another for food
what is a predator
kills other animals for energy
what is a consumer
consumes other organisms for energy
what is a producer
produces its own energy
competition
the struggle between members of a community for the same limited resources
if the niche of two organisms overlaps, only one will survive to make use of it
what do animals compete for
water, food, territory
what do plants compete for
water, light, PH
