Which statment is true about the appendicylar skeleton if the human body

What feature of cell theory is best demonstrated in the image

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

In "the man in the water," what was the remarkable occurrence that rosenblatt reported?