vocabulary
factors that are living in an ecosystem
biotic
species that grow quickly after its introduced to environment
invasive species
examples include water, trees, air, animals, wind and sunlight
renewable resources
first level of the energy pyramid and these make their own food
producers
why is diversity important in a population
organisms are connected to each other. more connections=more resources
factors that are nonliving in an ecosystem
abiotic
contamination of air, water, or soil
pollution
examples include soil, minerals, fossil fuels
nonrenewable resources
eat only producers
herbivores
where does primary succession begin
bare rock
changes that occur over time such as pollution
long term
transfer of energy to the next in a community
food chain
anything used that occurs naturally on the Earth
natural resources
how much is passed on to each level of the energy pyramid
10%
what are some ways humans can be harmful to the environment
pollution, highways
changes that occur quickly and affect organisms immediately such as drought
short term
shows how food chains overlap
food web
using resources carefully and not wasting them
conservation
how much is used at each level of the energy pyramid
90%
something brought into the country to be sold
import
gradual change in an ecosystem
succession
show how much energy passes from one organism to another
energy pyramid
three ways to conserve water
collect rainwater, irrigation, turning off water
three main abiotic factors
light, temperature, soil, nutrients
energy source in the earth
fossil fuels