In science class, you compared the sound of a whale call to that of a dolphins and found that whales have a much lower pitch. What is different
about the sound waves from these animals that makes the pitch different?

What does all of the organ system in a human form

For each of the following, decide whether the statement describes photosynthesis, cellular respiration, or both. releases energy in the form of atp. stores energy in glucose molecules. performed by producers. performed by consumers.

How can you tell the difference between rough er from smooth er?