Autopsy’s allow people to know the cause of death of the person. They can tell you if the person was intoxicated, injured, how they were killed, also it can be a huge evidence source to solve other cases that have similar causes of deaths. Hope it helps :)
A description of what the dependant and independent variables were
The organisms that is most likely not functioning as a keystone species in its ecosystem is; the Zebra mussels-Compete with native species, reducing the biodiversity of the Great Lakes ecosystem. Keystone species are plants or animals that play unique and vital role in the way an ecosystem functions. Without keystone species, the ecosystem would be dramatically different or cease to exist altogether.
A quick Google search revealed that Andrew Johnson was the 17th president of the United States.
