Which statement correctly matches a cell part with its function?
a. the cell membrane produces energy.
b. the mitochondria perform photosynthesis.
c. the lysosome digests molecules.
d. the nucleus performs cellular respiration.

many other transport proteins, often called pumps, move materials against a concentration gradient. active transport drives molecules across a membrane from a region of lower concentration to a region of higher concentration. this process, shown in figure 5.1, uses transport proteins powered by chemi- cal energy.

hybridization actually occurs frequently in nature. evolution is derived from the process of hybridization that creates things with different traits. this leads to the species changing and evolution occurring. hope this : )