What does the metamorphosis of a frog involve?
a. a change from a land-dwelling adult frog to a fish-like tadpole.
b. a change from an aquatic fish-like tadpole to a land-dwelling adult frog.
c. a change from an aquatic fish-like frog to a land-dwelling adult tadpole.

Four types of motile cells in human body?

The phylogenetic tree illustrates the relationship between humans and our closest living relatives. the tree was based on biochemical comparisons, including dna and amino acid sequences. according to the biomolecular data, we could infer that a) the four organisms do not have a common ancestor. b) humans are more closely related to chimps than any other apes. c) chimps are more closely related to gorillas than they are to humans. eliminate d) there is no evidence if any relationship between the four branches on the tree.

What is the similarities and differences between bacteria and eukaryote?