When doing a dihybrid cross, how many genes are examined?

Asmall number of finches are removed randomly from the wild and placed in a protected bird area. they are given as much food as they need and have plenty of space. why would natural selection not occur in this population? a. there is no reason for genetic mutation to occur. b. the birds compete for limited resources, c. the population has not reached carrying capacity. d. there is no genetic variation in the finches.

9. wind power creates pollution. water air soil noise

Adigestive system that is a series of tubes beginning at the mouth and ending at the anus is a digestive system.