A) <span>Fisherman can obtain larger catches than with nets.</span>
Worldwide, nearly one-third of the
population does not have access to clean drinking water.
The answer for this is <span>The population evolved because the frequency of the alleles and the genotypes changed so its letter B hope that helps</span>
Hey There!
Here is your answer:
Your answer is that a experiments should be controlled because the experiment could go out of control which could harm or hurt someone.
Also the definition of a controlled experiment is a part of the experiment that's not touched.
Ex: Water is your controlled experiment that's because our not doing anything to the water.
If you need anymore help just ask me!
Hope this helps!
Answer:
A.? i'm not 100% sure tho
Explanation:
