THOSE TWO QUESTIONS PLS^

1: if the species health is low it will affect everyone in the habitat as well as how the habitat functions, because the species will not be behaving as normal and might not care for the habitat.

2: all the fish  in the stream can adapt a genetic protection against diseases due to the different types of adaptions and DNA structures, the fish mating will produce stronger fishes who can live through different types of disease

Explanation:

the correct answer: the index of refraction of the second medium is lower i tried this persons answer and it was wrong this person is lying

after a the power stroke, adp is released, but the cross-bridge formed is still in place. atp then binds to myosin, moving the myosin to its high-energy state, releasing the myosin head from the actin active site.