DNA is going to be the answer
Answer: a.The study is funded by a group with a financial interest in the outcome.
Explanation:
Junk science is a term that is used to describe scientific research or data that is false and fraudulent and is usually presented in order for the people behind it to be able to push an agenda or assertion.
If a study is funded by a group with a financial interest in the outcome, the research could end up being junk science as the backs might persuade the researchers to manipulate the data in such a way that it would favor them.
For instance, a Big Tobacco funded research into lung cancer finding that smoking does not contribute as much as previously thought to lung cancer
Well this has to be your opinion :) but I will tell you autotrophs are organisms that can make their own food, so plants. Heterotrops are organisms that have to get their energy from another source, animals. So would you rather be a plant or animal (like you already are) and why?
Answer:
c. decaying plant and animal remains