True.
Mostly false though.
If an animal wanted to eat a person that died from a mutation they could but I would say that would be a rare occurance.
Climate change is the choice that answers your statement
Genetic drift is defined as a shift in the allelic frequency of a population. This can be caused by natural selection which is the differential survival and reproduction of individuals across a population due to differences in phenotype. Natural selection favors particular traits in a population hence these individuals are able to reproduce while the individuals with disadvantageous traits will pass their genes to succeeding generations. This way the allelic frequency of succeeding generation will be diferent from that of the parent population.
The secret of an endocrine gland that is transmitter by the blood to the tissue travel through the body .
The overall biodiversity in the Gulf of Mexico has gone down since the Deepwater Horizon spill. I hope this helps.