Determine which situation is an example of intraspecific competition. A. Squirrels and Blue Jays make a home in the same tree.
B. Two hawks share a hunting territory
C. A community of organisms fights over water in a desert oasis.
D. Minnows are a food source for both frogs and larger fish.

B, they're of the same species :)

Explanation:

Intraspecific competition is an interaction in population ecology, whereby members of the same species compete for limited resources. This leads to a reduction in fitness for both individuals, but the most fit individual survives and is able to reproduce.

the second type of galaxy is called a barred spiral, which has a thing called a bar straddling the nucleus

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.