How can we help?

You can also find more resources in our Help Center.

32 terms

Summer School PHS Domain 2, Earth Science

STUDY
PLAY
exponential growth
population has a constant birth rate through time and is never limited by food or disease
j curve
graph for exponential growth
decomposers
feeds on dead and decaying organisms.
producers
capture solar energy and take in materials and make food which is then passed on to the consumers.
habitat
place where an organism or a community of organisms lives
biotic factors
all living things
abiotic factors
nonliving conditions
trophic level
each level of consumption in a food chain
food chain
producer, primary consumer, secondary consumer, tertiary consumer, decomposer
herbivore
only eats plants
carnivore
only eats animals
omnivore
eats both animals and plants
scavenger
feeds on dead animals
carrying capacity
number of individuals who can be supported in a given area within natural resource limits
S curve
birth rate = death rate
energy pyramids
used to present the flow of energy through an ecosystem.
predator
animal that kills prey for food
symbiosis
close long-term interactions between different biological species
mutualism
both species benefit
commensalism
one species benefits, the other is unaffected
parasitism
one species benefits, the other is harmed
population
animals of the same species that live in the same place
community
organisms of different species living in the same location
ecosystem
all of the biotic and abiotic components in an area
tundra
a biome that consists of little plant life,experiences little rainfall and has permafrost
desert
a biome that is hot, dry, and experiences very little rainfall
deciduous forest
biome that is found in the southeast US-has four distinct seasons
taiga
biome that consists largely of evergreen trees, low temperatures and experiences moderate rainfall
grasslands
biome that is the habitat for large numbers of herbivores
tropical rainforest
hot, humid biome that experiences large amounts of rainfall
species
smallest level of the ecological system of organization
biosphere
largest level of the ecological system of organization