Mice eat plants and hawks eat mice. During a good growing season, a lot of plants are produced. How will this affect the hawk population? A. The hawk population will increase
B. The hawk population will decrease
C. The hawk population will remain the same
D. The hawk population will drop, then stabilize

Name the plastid and pigment likely to be found in the cells of (a) petals of sunflower (b) ripe tomato.

Check all that apply diatoms are marine algae that have a shell made of silica, what are some of the uses of the silica shell after the diatoms die? 1.the shells make up the diatomaceous earth used in filters 2.it can be used as an ingredient in abrasives 3.they are used in food products 4.the shells can be used in some insulating materials

Why are scientists concerned about the depletion of the ozone levels in the stratosphere?