What kind of back legs did basilosaurus have

Movimento corporal andar, musculos planos e eixos

What evidence for the age of the earth is indicated by the fact that sedimentary rock is found on mountain tops? that the earth has expanded outward from water beds that mountains formed first before anything else that some force lifted the rocks from the water the earth is not very old and has not had time for many rock layers to form

If a dna molecule has 100 nucleotides and 22 of them are cytosine, how many thymines does it have?