Several factors effect an organism ability to fossilize A sedimentary depositional environment allows organisms to be buried by sediment before ?

In which situations is the principle of cross-cutting relationship useful in determining relative age?

Why would a drug the damages capsids treat a viral infection

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