A control group is important to a controlled experiment because it is used in an experiment to establish its validity.
Answer:
Option C
Explanation:
Given ,
A1 allele is carried by
% people
Let us assume A1 s dominant genotype
This means 
Thus, frequency of allele in the given population is 
It is also given that the population is in Hardy-Weinberg equilibrium thus

Frequency of fruit fly with genotype A2A2 will be

As per Hardy-Weinberg's second equation of equilibrium

Hence, option C is correct
Answer:
I believe you are is GAP 1 still or synthesis. I'm not 100% sure
Explanation:
Please correct if wrong!
Hope this helps! (づ ̄3 ̄)づ╭❤~
Answer:
I think that the second picture was correct
Explanation:
gravitational field is a model used to explain the influence that a massive body extends into the space around itself, producing a force on another massive body. Thus, a gravitational field is used to explain gravitational phenomena, and is measured in newtons per kilogram (N/kg)
Because there are other liquids in your body it passes through and it adds to the amount of water.