The first top one is right
They are both similar because they both replicate stuff and they are different because DNA replication is natural but DNA cloning is man-made.
hope it helps!
Oxygen and carbon dioxide travels to and from tiny air sacs in the lungs, through the walls of the capillaries, into the blood. Blood leaves the heart through the pulmonic valve, into the pulmonary artery and to the lungs.

Answer:
an endoskeleton is a skeleton on the inside of a living creature. look at endo like enter, its on the inside! an exoskeleton is on the outside of a living creature. think of exo as exit, its on the outside! animals with endoskeletons are like dogs, cats, fish, and raccoons. animals with exoskeletons are like spiders, ants, crabs, and snails.
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Answer:
what are two parts of the mitochondria?
Mitochondrial matrices and cristae
Explanation:
Mitochondria matrices makes up the spaces in-between the inner membrane while the mitochondria cristae resulted as a result of folding inwards of the inner membrane.