I need help with this asappp

Which is not a characteristic of bacteria? a. they are unicellular. b. they are prokaryotic. c. they are the smallest form of life on earth. d. they are multicellular.

What two factors does carrying capacity compare? population size and resource use population growth and resource availability resource use and time population size and time

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