Temperature and moisture are key factors in determining where each of the major terrestrial occurs ?

Which of the following statements about archaea and bacteria is true? a. neither is single-celled. b. they both have nuclear membranes. c. neither reproduces by binary fission. d. they both lack a nuclear membrane.

Which is abiotic? a. tree sap b. insect c. sunlight d. wood table

The effect of a hormone on a target cell may be decreased by the presence of