If a gene has one completely dominant allele and one recessive allele, how many different traits can these alleles produce?
A. 1
B. 0
C. 2.
D. 3

I think it's A. 1

Explanation:

hope it helps .

the answer is 2

Explanation:

The answer to the question is climax community. Once the vegetation in an area has reached a steady state, it can sustain a population of animals, creating a climax community, a collection of organisms that are sustainable and are best adapted to the average environment. In the case here, a desert composed of cactus and brush as well as birds, snakes, lizards, and rodents would definitely be considered a climax community to sustain all those species.