3C
暂无描述。系统推荐的高质量记忆内容，适合每天坚持背诵学习。
卡片预览 (22 张)
make there own food
producers
cant produce there own food
consumers
eat plants
herbivores
eat meat
carnivores
eat prey
predators
avoid predators
prey
eat leftovers
scavengers
when organism try to use the same resource
competition
eat meat and plants
omnivores
waste of plants and animals (poop)
detritus
organisms that help break down nutrients
decomposers
food chains that overlap
food web
illustrates a food chain in a pyramid with different layers
ecological pyramid
amount of living matter
biomass
layer of ecological pyramid
trophic level
animals interacting with each other within their habitat
symbiosis
one benefits the other doesnt
parasitism
both benefit
mutualism
one benefits and the other is unaffected
commensalism
one is harmed the other is unnaffected
amensalism
how many species there are in an area
species richness
one populations proportion to another
species eveness