The disease rabies is caused by a virus that attacks the central nervous system. the virus is normally introduced by an animal bite that breaks the surface of the skin. since the virus is not motile, how does it travel to the central nervous system

What is thought to have caused the mass extinction at the end of the cretaceous period?

In this assignment, you will analyze an example of speciation by researching the finches of the galapagos islands. then you will answer questions to construct explanations and draw conclusions based on the information you gather. someone plz !

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