Identify the cavity that develops entirely from the mesoderm.

Which property is used to identify the origin of an igneous rock? color density hardness crystal size

How are mutations continually being generated in a population (what are some of the causes of mutatuions? ) explain

Cattle with brown fur and cattle with white fur will produce a reddish roan calf . when examined closely, the calf show about an even number of brown hairs and white hairs that give a reddish appearance when viewed from far away. the fact that both the brown fur allele and the white fur allele are expressed equally in the offspring is an example of