German scientist schleiden and schwann determined that the basic unit and function in the living things is the
a. atom
b. molecule
c. cell
d. nucleus

One of the purposes of transcription is to produce a sequence of bases that

What is the main function of the central vacuole in a plant cell? a. absorbs energy from the sun to produce food b. holds water and maintains turgor pressure c. breaks down molecules to release energy d. contains the cell's genetic material

What two factors does carrying capacity compare? population size and resource use population growth and resource availability resource use and time population size and time