<span>B)Both are involved with stages of succession, but pioneer species are the beginning and climax communities are the end result.</span>
The hearts contraction that maintains our blood pressure allowing us to breathe and exchange gases at all levels of respiration, ensuring oxygen is provided to all cells of the body, and waste products are eliminated.
Answer: Vagovagal reflex control circuits in the dorsal vagal complex of the brain stem provide overall coordination of gastric, small intestinal, and pancreatic digestive functions.
Explanation:
Higher trophic level is further up the food chain. Further up you go there are less and less competitors. So the answer is true
I don’t know what the answer is but I would like to know