Answer:
a dam flooding a valley
Explanation:
It would be a dam flooding a valley because in a new ecosystem there would then be a increased load of phosphorus and nitrogen and increased algae growth.
Answer:
Glucose serves as a major source of energy for metabolic processes in mammalian cells. Since polar molecules cannot be transported across the plasma membrane, carrier proteins called glucosse transporters are needed for cellular uptake.
Explanation:
Answer:
A, B, AB, O are the possibilities.
True.oxygen very important matter hemoglobin
Answer:
I don't understand but the 15 is 15×2 = 29
