The species that are most vulnerable to extinction are those, which are

a. endemic and limited to a single population.

b. endemic and widespread in several large regions.

c. genetically diverse and found in many regions.

How does the warming of the worlds oceans disrupt the flow of the water cycle? A. It increases the amount of population B. It increases the amount of precipitation C. it decreases the rate of the evaporation D. it decreases the rate of transpiration

What happens to the energy during a chemical reaction? Energy is burned up by the reaction. Energy is converted from one form to another. Energy is created by the reaction. Energy is used up by the chemical reaction.

Which of the following is a source of chemical weathering that has been exacerbated by air pollution from industrial plants and car emissions? A. acid rain B. oxidation of iron C. formation of clay D. dissolving of limestone

Which features of Mt. Lico isolate the forest on the mountain from the surrounding area?

Robin whyatt is researching links to birth defects from indoor pesticide use in new york city. what does she believe to be a common misconception about pesticides?

Select the best statement. Resource partitioning would be most likely to occur between A) sympatric populations of a predator and its prey. B. sympatric populations of a flowering plant and its specialized insect pollinator C.

What gases is contributing the most to causing global warming?

Heat and pressure act on a layer of sedimentary rock over millions of years. Which of the following features is most likely to develop on the rocks as a result?

A. En los animales, las células hijas haploides producidas por división meiótica se llaman

A diploid number of chromosome is reduced to a haploid number