I think the answer is A. Usually people hunt bison so i think over hunting is whats causing the decimated of the bison.
Pistil the female reproductive part of a flower
The shorter the food chain, the larger amount of energy obtained.
Hence, the consumer furthest away from the producer obtains the least energy.
The quaternary consumer is furthest away. Most energy is lost by then. Hence, it has access to the smallest supply of energy.
As far as I know, I think the correct answer is option 2.
Coyote because when an orgaism is eaten only 10% of that emerged is received.