Which of the following are considered media?

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

In "the pig," what is the main effect that the piglet initially has on kibuka?

What two conditions must be present for osmosis to occur?