The first event or first thing they do, because the first thing they do is exercise for 2 hours everyday to keep their muscle and bone strength.
Through the actions of alleles
Answer:
D - Other scientists can validate or disprove the findings
Explanation:
Publishing findings of their research projects is important as it enables peer-revision on their journals. The work can then be evaluated by the community at-large to validate or disprove it, which opens the dialogue with associate researchers.
I believe the blank is "mass."
