Answer:
limiting factors
Explanation:
The ecological optimum represents the value of the factors within the ecological valence at which the life processes of a species take place best. The upper and lower limits of an ecological valence are its maximum and minimum. Beyond these limits, physiological processes are interrupted and death occurs.
A divide is the elevated boundary between areas that are drained by different rivers system
Answer:
Hitched a ride or Humans brought it and planted it.
Explanation:
The types of rock that can form sediment when they are weathered is D. Igneous, sedimentary and metamorphic. (When the molten rock cools it forms an igneous rock. Metamorphic rocks can form from either sedimentary or igneous rocks. The sedimentary particles from which a sedimentary rock is formed can be derived from a metamorphic, an igneous, or another sedimentary rock. All three rock types can be melted to form a magma.)
I believe it is A. Nerve. I am pretty positive I am right.