The answer to your question is D.
In genetics, a missense mutation is a point mutation in which a single nucleotide change results in a codon that codes for a different amino acid.It is a type of nonsynonymous substitution.
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Always 10% of the energy is passed on to the next trophic level and 90% is lost... mostly heat: so if the producer has 500 units of energy then the primary consumer has 10% fromm 500 = so 50 units of energy is passed on to the next trophic level.
Hope this helps :D (I know a few are missing sry <3)