Vascular plants maintain the water cycle. which property ot these plants enables them to carry out this function?
a. well-developed vascular system
b. dominant sporophyte generation
c. well developed root system
d. development of true leaves

Abanana plant produces rhizomes, which are involved in?

How many trophic levels are there in the following food chain? phytoplankton - shrimp - perch - pike - osprey

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.