The cell membrane is made up of
a double layer of cellulose
a single layer of cellulose
a double layer of protein
a double layer of phospholipids

Agene pool: a) is the collection of all the alleles found in a single species b) is the collection of all the alleles found in a single population c) is the collection of all the chromosomes found in a single population d) is the collection of genes in a species that allow the individuals to swim

Compare the shapes of the bones of the human skull with the shapes of the bones of the human leg. how do the shapes differ? why are the shapes important?

The basic kind of life cycle found in the simplest animals is: haplontic or diplontic