What was the ground surface temperarure in death valley june 29 2021

What re the two main phrases of the cell cycle.

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.

Why is it important to reduce the number of chromosomes in half when forming gametes for sexual reproduction?