Answer:
B: humans inhale oxygen from plants which is used in cellular respiration to produce water
Explanation:
Habitat destruction is the key one out of all of these. Animals being kept at the zoo for research are usually endangered or vulnerable species which is doing more good than harm to them. Legal hunting of animals is most likely for rabbits, deer, and a stabilized population in the wild. Habitat destruction can destroy many populations and cause loads of damage. An example of that would be the Australian wildfires at the start of 2020.
Very powerful microscopes were needed before cells could be observed in detail
It continues to multiply untill the max. later it eats itself to make more space for it to multiply
