Why is an overabundance of nutrients harmful to a water supply? a. it decreases the number and types of aquatic plants. b. it sterilizes water. c. it kills all aquatic plants. d. it causes excessive aquatic plant growth.

When you run, you begin to breathe heavier and faster. your heart beats more quickly, bringing more oxygen to your cells. which organ systems are working together here?

When mitochondrial dna from living relatives was compared with mitochondrial dna from the skeletons, scientisits determined that skeletons 3,4,5,6 and 7 were members of the romanov family. which of these skeletons can be identified by name based on the evidence you have? explain your answer.

Chitin is a chemical component of the cell walls