False because t<span>he </span>Cambrian Period<span> was when most of the major groups of animals first appear in the fossil record.</span>
Answer:
a polymer is a large unit comprised of monomer
Answer: D. magnesium
Explanation:
Chlorosis is a condition in which the leaves of the green plants do not have enough nutrients so as to synthesize the chlorophyll to keep the leaves green. Thus the leaves loose their color. The loss of chlorophyll from the older leaves is the characteristic feature of magnesium deficiency. It happens when the soil in which the plants are growing lacks magnesium.
Answer:
One of these is natural selection, which is a process that increases the frequency of advantageous gene variants, called alleles, in a population. Natural selection can result in organisms that are more likely to survive and reproduce and may eventually lead to speciation.
Explanation:
Climate, Land form/shape and fossils(he was most interested in this)
