The answer would be A. thick filaments!
Answer:
I think the awnser is D. Hope it helps
Answer:Ais the answer
Explanation:
I passed biology last year and that’s something I remember
It provides an objective, standardized approach to conducting experiments and, in doing so, improves their results. By using a standardized approach in their investigations, scientists can feel confident that they will stick to the facts and limit the influence of personal, preconceived notions.