How could variation within the fish population individuals survive their encounter with the dolphins?

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

What does the positioning of transcription factors determine?

Up to what percentage of the world's flora consisted of cycads during the triassic period? 100% 75% 50% 20%