Answer:
I'm pretty sure that it's A
Answer:
this study is clearly an observational work
Explanation:
experimental studies involve to establish direct associations between a traits and its phenotypic effects. For example, a classical experimental study would involve to map a nonsense mutation in the ACTN3 gene significantly correlated to the non-sprinting phenotype
Answer:
Respiration is a person's breathing and the movement of air into and out of the lungs.
Explanation:
The respiratory system provides oxygen to body tissues for cellular respiration, removes the waste product carbon dioxide.
Based on the paragraph, the ans is:
he <span>concluded that the mold inhibited the growth of bacteria.</span>
