An organism must have a in order to be considered living.
as a sunflower grows, it bends toward the sun's light. this is an example of
a. reproduction.
b. response to a stimulus.
c. artificial selection.
d. a controlled experiment.

"acknowledging a right to benefit from the presence of animals requires government action to ensure human access to animals in a number of different spheres," writes jessica pierce, ph. d., in psychology today. the pragmatic meaning of the term "right" in this statement is

The model illustrates a process by which a substance is taken up by a cell

Explain how scientists use geologic time to determine the age of landforms.