<em>Answer,</em>
<em><u>False</u></em>
<em><u /></em>
<em><u>Hope This Helps :-)</u></em>
Answer:
See the answer below
Explanation:
a) The mode of inheritance of the bar mutant is X-linked and dominant.
Assuming that barness is represented by the allele B.
Bar female =
or 
Wild type male = 
Bar female x wild type male:
x 
All of the F1 flies are bar because a single B allele is required for the trait to be expressed.
Bar male x wildtype female
x 

All the female offspring are barred while all the males are wildtype barred resulting in a 50/50 (857/905 is approximately 50/50) ratio of barred/wildtype offspring.
b) Genotypes of each of the cross above, including the parents and the F1 generations.
1.
x 
2.
x 

(つ ^-^ )つ Hey There!
Answer : Groundwater is generally much cleaner than surface water. So ✨Yes✨
Why : Groundwater is less susceptible to pollution than surface water because as water enters the ground, the soil and rocks naturally filter much of the water as it passes through the ground.
✨Hopes this Helps!✨
True the both "flow" the same way in ecosystem. That's what I learened.