Answer:
Fossils are the preserved remains, or traces of remains, of ancient organisms. Fossils are not are the remains of the organisms, they are rocks. A fossil can preserve an entire organism or just part of one. Bones, shells, feathers, and leaves can all become fossils.
Explanation:
Fossils are an remnant, impression, or trace of an animal or plant of a past geologic age that has been preserved in the earths crust.
<span>humus; Increase..................................................</span>
It should have the shape number 2.
The substance A has a region that will bind to the nerve cell Y.
The drug developed that's going to block the substance A, will have to have a region that is complementary to the substance A. If those two regions get linked the substance A will have nowhere else to bind.