tiktaalik roseae is in a state between the ancestral form and the modern form of its descendants. this is known as

Describe how alleles and genes are related

1. fold your hands together so your thumbs cross over ,and look at your thumbs. which thumb feels most "comfortable" on top is actually controlled by a gene. the left thumb folding over the right thumb is a domi

Climate like that in the sahara desert have the fastest rates of weathering