If he studied a small sample it wouldn't be a representative sample. since he got such a large sample there is a chance most likely all organisms follow the rules of evolution.
The capability of both leptin and cholecystokinin in which they
have a similarity when a person has decreased its food intake. A leptin is a
way of helping an individual to regulate energy in means of having to inhibit
its hunger while the cholecystokinin is responsible for having to stimulate
digestions.
Adenine,guanine,cytosine,and uracil
D is the answer.
Formula A and B are written incorrectly.
Formula C has 4 carbons, 5 hydrogens and 3 oxygens.
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To understand the environment of the fossilized organism to see what it would have ate or drank anything. in the surrounding area.