The prewriting stage of writing an expository essay includes
A. read and revise your essay, making sure your
points support your thesis statement.
B. check for any errors in spelling, punctuation,
and grammar and correct them.
C. write a thesis statement, decide how to
structure/organize your essay, and make an
outline.
D. publish your essay by submitting it to your
teacher.

Choose a mutation from those in model 2 that would be neutral for a cell. explain your reasoning by relating the mutation to the cellular respiration process.

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.

Number and variety of living organisms includes genetic, species, and ecological types