Most sharks have a low reproductive potential, which of the following factors might contribute to this?

How does the author's purpose in this passage differ from an author writing about her personal struggle living with asthma?

What is the relationship between absorbance of light and the rate of photosynthesis?

Approximately percent of the energy created by cell metabolism is used by the body to carry on its normal functions, such as respiration, digestion, reproduction, muscular movement, circulation, and cellular regrowth.