If a skin cell has 30 chromosomes, then in the same organism, a sperm cell would have how many chromosomes? a. 15b. 60c. 120d. 30

Based on the data in your tables, did the light-colored moths have a higher or lower survival rate after the industrial revolution?

Food webs - transferring energy and matter from one level to another. here you see four food webs. one or more are incorrect. which food web(s) show the correct sequence of organisms, from start to top level consumer? a) a b) d c) c d) a and d

The normal shape of an enzyme is as shown in structure a. if the enzyme’s shape changes to that shown in structure b, what are two consequences of this change?