5) When living organisms die the dead material decays and is broken down.
The process of decay returns carbon dioxide to the atmosphere.
What type of organism causes decay?​

In the african savanna,more wildebeests are born than the environment can support. which is most likely to happen over a period of years as a result

In which case would a scientist choose to use a dissecting microscope rather than a compound microscope

Examine the two squirrel populations in the accompanying figure. the populations are separated by a geographic barrier. if after a long period of time the two species are no longer separated, what evidence is needed to determine if speciation has occurred? the figure shows two populations of squirrels separated by a geographic barrier. examine the two squirrel populations in the accompanying figure. the populations are separated by a geographic barrier. if after a long period of time the two species are no longer separated, what evidence is needed to determine if speciation has occurred? the figure shows two populations of squirrels separated by a geographic barrier. polyploidy is creating new species. the two populations are not interbreeding freely. hybrid offspring of the two populations begin to appear. one species will increase into a population size twice as large as the other species.