Which of these statements about natural selection is true? (Select all that apply.) A)Traits that help an organism survive to reproduce are passed on to their offspring.

b)Favorable traits that help an organism reproduce are present in their offspring, increasing the offsprings’ likelihood of surviving to reproduce.

C)Favorable traits are not passed on to the next generation.

D)Individual organisms can change their traits to work better in their environment.

Two researchers are attempting to create a new psychotherapy protocol that more reduces panic attacks. they believe that they have succeeded and are now in the clinical trial period of their protocol's development. they are working with several cohort groups, some of which have been through the new protocol, while others have done the standard protocol currently recommended. if these researchers are interested in evaluating the difference in the percentage of test subjects who successfully decreased their panic attacks in 2 months on the new protocol versus the percentage of test subjects who successfully decreased their panic attacks in 2 months with the traditional protocol, which of the following statistical tests would be most appropriate? a. analysis of variance (anova) b. correlation c. chi-square test d. paired t-test e. independent t-test