The fittest organisms tend to survive so they continue to populate
the organisms being hunted become extinct so the population of their species decreases immensely
Answer:
By breathing when oxygen enters the body it goes to alveoli and gas exchange occurs then carbon dioxide comes out of the the body
I believe the polysaccharide that provides rigidity and strength in plants would be cellulose. As this is one of the essential components found in the cell wall of plant cells.
The level most commonly meant by the term biodiversity is the species level.
