Answer:
A.
Explanation:
The greatest risk environmentally with the unregulated harvesting, because it could endanger or terminate a species.
Answer:
C. Responsiveness and timing
Explanation:
I just know it, I really don't know how to explain
Answer: energy produced in the core travels through out the gases of Sun and takes about million years to reach its surface
Explanation:
Answer: the movement of ions or molecules across a cell membrane into a region of higher concentration, assisted by enzymes and requiring energy.
Explanation:
Requires energy input from a cell and enables A cell to move a substance against its concentration gradient
