<span>Construct a hypothesis.</span>
Sample b is the control group because it’s the group not being tested and being kept the same.
A mid-ocean ridge is an underwater mountain system formed by plate tectonics. It consists of various mountains linked in chains, typically having a valley known as a rift running along its spine.
Answer:
Organelles in animal cells include the nucleus, mitochondria, endoplasmic reticulum, Golgi apparatus, vesicles, and vacuoles
Explanation:
It seems that you have missed the necessary options for us to answer this question so I had to look for it. Anyway, here is the answer. The genetic or chromosomal abnormality that is correctly matched with its description is this: Phenylketonuria—the child cannot produce a critical enzyme, resulting in an accumulation of <span>poison, in turn causing mental disorder. Hope this helps.</span>