Areview of the cladogram shows a common ancestor for these four types of vertebrates. which statement best explains the genetics represented by the cladogram? a) there are no genetic similarities among the four distinct types. b) the four types of animals no longer have any genetic similarities. c) lizards and snakes are more genetically alike than lizards and birds. d) a common ancestor indicates that the four once had identical genotypes.

the dna of humans and mice is almost 92% similar. this similarity indicates that . mice have a tail, while humans have a tailbone. the tailbone is a structure in humans.yes it's true.

many other transport proteins, often called pumps, move materials against a concentration gradient. active transport drives molecules across a membrane from a region of lower concentration to a region of higher concentration. this process, shown in figure 5.1, uses transport proteins powered by chemi- cal energy.

oxygen = 21% of the atmosphere

nitrogen = 78%

carbon dioxide = 0.1%

argon =0.934%