A cat gray fur and blue eyes. Blue eyes are recessive. Which of these is a possible genotype for this cat? *

The series of transgressions and regressions that produce cyclothems were likely produced by

Which flexible structure that supports the nerve cord and led to the backbone

Which conditions are necessary for natural selection to occur? select all of the answers that apply. a. inheritable adaptations vary among individuals. b. the population size is increasing. c. more individuals are born than can survive. d. fitness varies among individuals. e. the environment changes suddenly and drastically.