In daffodils yellow flower color is dominant over white flower color. what is the genotype of any yellow-flowering plant resulting from this species?
a. yellow (y) and white (y) alleles present on two chromosomes.
b. a yellow allele (y) present on both homologous chromosomes.
c. a yellow allele (y) present on at least one of the two homologous chromosomes.
d. yellow (y) and white (y) alleles present on one chromosome.

The answer is c. A yellow allele present on at least one of the two homologous chromosomes. Because the dominant genotype just needs one dominant allele. So the common character is at least one yellow allele.

A slow-moving or sessile lifestyle in the adult.

Explanation:

Evolution is change in the characteristics of species with respect to time. Natural selection acts as the main driving force for the process of evolution.

The cnidarians species shows motility and adults are generally sessile in nature. The protection of the cnidarians is important for their survival and reproduction. This evolves the development of the deadly toxin by the cnidarians that kills their enemies and protect themselves from the predator.

Thus, the correct answer is a slow-moving or sessile lifestyle in the adult.