Abird molts by shedding all its feathers at once and then quickly replacing them.

true
false

Compare and contrast cladistics and phylogeny. what are their advantages and disadvantages? which is the most useful in understanding how an organism developed into its current form? which concept most strongly supports your opinion about the origin of any given organism?

Which fossil organism in whale evolution do you think was the first to live mostly in water? explain your claim with evidence and reasoning?

What is the next step in muscle contraction after the actin changes shape?