Which cells are biconcave in shape and have no nucleus?

Of seawater increases with decrease in the temperature. therefore, the cold water sinks to the deeper layers at the bottom

Ais a group of individuals of the same that exist together in the same place at the same time

Why did mendel use pea plants in his experiments? a. they have no alleles. b. they are haploid organisms. c. they reproduce quickly. d. they are all male.