Metabolic pathways a. control the flow of energy. b. control enzyme activity. c. can be linear or branched out. d. all the above.

Why do you think the puppy litter was all dark-haired?

Despite the differences in mature plant cells, all of them are derived from meristem cells. the three major types of tissue systems develop from the meristem. meristems develop cells in all but which tissue?

Explain why ecosystem diversity results in species diversity in a healthy biosphere