4.

Why are decomposers important?

They break down dead and decaying organic material.

They return nutrients and elements to a usable form in the environment.

They consume the most energy of all the trophic levels.

Both A & B are correct.

What is the only way to be certain chemical reaction has occurred?

Why does diffusion occur?

Wha did the yellow ball in the center of the model represent

Seagrass beds provide many benefits to the near-shore ecosystem, such as providing oxygen, stabilizing sediment, creating nursery grounds for many marine species, and acting as a food source for sea turtles and manatees.

What is the best definition of the term "biological diversity"?

Which will have a better chance of surviving a major change in the environment where it lives: A) A bacteria strain with only twenty minutes between generations B) A large mammal (like bears) with decades between generations Explain your choice

What are the three-letter "words"of mRNA

What are the two ways that carbon enters into the atmosphere?

If an animal cell is placed in distilled water, it will A) remain the same size. B) shrink. C) swell and eventually explode. D) swell, but stop when the cell wall prevents further expansion.

What atre three types of nerve fibers?