The removal of plant material, such as grass clippings, would most likely affect an ecosystem by
a decreasing the potential for soil erosion
b increasing the food available for consumers
c decreasing the nutrients available for new plants
d increasing the accumulation of organic materials

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.

Which statement describe events that occur during interphase?

Which term describes a normal value for something in the body? a. homeostasis b. set point c. feedback loop d. integration center