What is an assemblage of different populations (groups of individuals that
belong to the same species in a given
area) that live together in a defined
area?
A. population index
B. community
C. biosphere

Patricia is told by her physician that her body and brain chemistry have physically adapted to the drug and that she has become dependent on the tranquilizers prescribed for her by another doctor.

As a small change in a person's dna can cause a genetic disorder

An ecologist studied the same species of deer during the summer and the winter. she noticed that during the summer, when there was plenty of food, the deer were energetic and playful. however, during winter when food was scarce, the deer moved more slowly and did not run unless they needed to escape a predator. which scientific fact is best supported by her observations?