Answer:
b
Explanation:
they are fighting for the same things so it would be competition
Answer:
A.
Explanation:
I'm pretty sure it's A, glucose produced during photosynthesis.:) Hope it helps.
Oxygen - It is very important for all living to survive 'cause without it, cellular respiration can't take place....
Glucose - It is the simple food, it provides energy to the whole ecosystem, so that they can survive.
Without either of them, life is not possible!!!!!
Answer: Plants are cloned to produce identical plants quickly and economically.