D.
A fixed allele is homozygous within a population so D should be the correct answer.
Hope this helps!
Answer:
Photosynthesis takes in energy from the sun, CO2 and H2O and produces Glucose(don't know formula), O2 and H2O. This means the water is needed for the reaction but isn't transformed. This means that in areas with greater average rainfall, plants generally grow faster.
Please help with my recent questions if this helped. :)
The answer to this is DNA.
Not sure but I think the answer is D because D for DIS N ya that’s what I think
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