B.Trees C.Animals & D.Plants are all biotic factors
Explanation:
A biotic factor is a living factor on an ecosystem, the sun is an abiotic factor because it is nonliving.
Answer from: Quest
image result for describe the various types of gene mutationsghr.nlm.nih.gov
the types of mutations include: missense mutation: this type of mutation is a change in one dna base pair that results in the substitution of one amino acid for another in the protein made by a gene. nonsense mutation: a nonsense mutation is also a change in one dna base pair.
explanation:
Answer from: Quest
your answer is "the 1950's"
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