A population of wild turkeys lives in a forest ecosystem. The population’s size is near the carrying capacity of its environment. Which of the following best describes the forest ecosystem’s carrying capacity for the wild turkey population?
Choose 1

A. The carrying capacity is the limit to the number of wild turkeys the forest ecosystem can support.

B. The carrying capacity is the wild turkey population density at which competition for resources is lowest.

C. The carrying capacity is the minimum number of nesting sites needed to support the wild turkey population.

In what layer of the sun is energy transfers between atoms

When is your respiration rate likely to change? a. when your intestines are digesting b. when your cells have too much glucose c. when your cells need more oxygen d. when your liver is working after a meal

To answer this question, researchers studied populations of the dusky salamander (desmognathus ochrophaeus) living on different mountain ranges in the southern appalachian mountains. the researchers tested the reproductive isolation of pairs of salamander populations by leaving one male and one female together and later checking the females for the presence of sperm. four mating combinations were tested for each pair of populations (a and b)—two within the same population (female a with male a and female b with male b) and two between populations (female a with male b and female b with male a). the proportion of successful matings for each mating combination was measured. for example, when all the matings of a particular combination were successful, the researchers gave it a value of 1; when none of the matings were successful, they gave it a value of 0. then the researchers calculated an index of reproductive isolation that ranged from 0 (no isolation) to 2 (full isolation). the reproductive isolation value for two populations is the sum of the proportion of successful matings of each type within populations (aa + bb) minus the sum of the proportion of successful matings of each type between populations (ab + ba). the table provides data for the geographic distances and reproductive isolation values for 27 pairs of dusky salamander populations.