Which statement best describes ecological succession? A. It is always caused by human intervention.
B. It occurs after a disturbance.
C. It never occurs in a predictable pattern.
D. It is a series of rapid changes in an ecosystem.

Suppose a dominant allele codes for a big nose and a recessive allele codes for a small nose imagine that an organism receives a dominant allele from its mom and a dominant allele from its dad. what can be determined about its genotype and phenotype?