Answer:
Option (A).
Explanation:
Evolution may be defined as the change in the characteristics of a species over several generation with time. Natural selection acts as a main drivinf force for the evolution.
The drought of 1977 is responsible for the species evolution. The species is larger in this case (as mentioned in the question) and the species has deeper beaks over time. The birds have relatively large and deep beaks because they can easily crack the food.
Thus, the correct answer is option (A).
The answer obviously is A.
The answer is b. Hope this helps!
Answer: D. The genus and species are a broad level of classification Hope it helped =D
The correct answer is C. 50 %
A male is a carrier of a recessive somatic mutation it means the mutation can be expressed under homozygous condition, when both the alleles with somatic mutation. Thus, in case of a male carrier of a recessive somatic mutation marries to a normal female will produce 50 % their offspring with recessive somatic mutation so, they will be carrier and 50 % offspring are without this mutation.