52. Why are enzymes essential to organisms?
a. They are catalysts for biochemical reactions in cells
b. They provide short term and long-term energy for the cells
c. They provide instructions for protein synthesis and determine traits
d. They create semipermeable barriers in the cell that separates the inside and outside of the cell.

Maria wanted to grow a fern in her backyard. acting on a suggestion from a friend, she collected brown dots from the underside of a fern's leaves and then potted them. after a few days, maria saw small fern leaves erupting from the pot. which statement explains this phenomenon? a. the fern transitioned from gametophyte generation to sporophyte generation. b. the fern grew as a result of mitosis. c. the fern transitioned from sporophyte generation to gametophyte generation. d. the fern grew to be genetically identical to its parent plant.

List two modern organisms that have pentameral symmetry

What is the name for a substance formed in a chemical reaction