In going from one trophic level to the next higher level, A
the number of organisms increases.
B
the amount of usable energy increases.
С
the amount of usable energy decreases.
D
none of these choices are correct.

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

a unit of heredity that is transferred from a parent to offspring and is held to determine some characteristic of the offspring.

population. population is the number of people or animals in a particular place. an example of population is over eight million people living in new york city.

here is your answer hope i .