Which is a feature of a cladogram? A The characteristics must be shared among the organisms.
B The characteristics must be different among the organisms.
C It must contain at least three different shared characteristics.
D It must contain at least three different groups of organisms.

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.

and after water is usually warmed by the sun the water temperature raises and then evaporates .

some inherited genetic mutations can be good for the offspring, so the answer is different genetic mutations cause many forms of cancer.

the answer is