Well a hypothesis is guess about an experiment and how it works or is preformed. If your supporting one then you agree with how its done and how it works and you got good results. If you fail a hypothesis that means you most likely tried and didn't succeed or didn't get the results you wanted. Sorry if this is confusing the question kinda confused me.
Answer:
I think it goona be A am I right or wrong
A dichotomous key is a 2 choice key. I believe this is the solution.
Answer: Biological Test Biological tests are frequently used to validate the physical and chemical tools or to provide complementary evidence about bioavailability process in a system. From: Chemosphere, 2017
Explanation:
Yw and pls mark ME AS THE BRIANIEST :D