Me with biology

the area in which all known physically living things exist is the

ecosystem.
biosphere.
earth.
universe.

earthworms aerate and fertilize the soil as they dig burrows and excrete casts. they are also an important part of the detritus food chain. the role they play in enriching the soil and as detritivores is called

a habitat.
carrying capacity.
a niche.
competition.

the diet of a koala consists almost entirely of eucalyptus leaves. the koala would be considered a

specialist.
generalist.
producer.
detritivore.

in which group of organisms would you most likely find generalists?

herbivores
carnivores
omnivores
detritivores

matter is cyclic, but energy is noncyclic.

true
false

which of the following is an example of a density-independent limiting factor?

the number of trees available for squirrels to build nests in
the size of grazing area available for a herd of bison
the amount of sunlight available to a vegetable garden
the number of zebras available to a population of lions

at what point will a population stop growing?

when the birthrate exceeds the death rate
when it begins exponential growth instead of logistic growth
when it reaches carrying capacity
when it exceeds its range of tolerance