Estimates of current rates of extinction

We should care about loss in biodiversity in the populations of other species because of

Which of the following statements best describes the effect of climate on biome distribution?

In a rural hilly neighborhood, a landowner uses bulldozers to clear all but the largest trees and cleans up a nearby stream, lining the bottom of the stream with decorative rocks and stepping-stones. Planting lawn grasses around the base of the trees, the owner wants to create a park-like setting around his home. We expect that in this ecological simplification of the cleared yard, there will be

Biodiversity in the world is

Which of the following would be most effective in slowing the loss of biodiversity?

In the map above, where will the weather be drier? I. near 30° NII. near 30° SIII. near the Equator

Small areas that have a large number of endangered and threatened species are referred to as ______.

Animals can get rid of excessive minerals in their bodies via urine only.  

Microminerals make up roughly 0.5~0.55% of the animal body (on a dry weight basis).