it is a broad predictive model which is supported by lots of evidence. ☐ E) scientists should not bother trying to disprove it. Question 18 (2 points) Identify the true statements below. CHOOSE ALL CORRECT ANSWERS. Intrasexual selection is most pronounced in males in a population. Showy secondary sexual characteristics cannot be explained because they break all of the rules of natural selection. In most vertebrates, males court the females. Sexual selection can result in sexual dimorphism (marked differences between the sexes in secondary sexual characteristics that are not associated directly with survival). Question 19 (Mandatory) (2 points) Saved Which of the following are conditions of Hardy-Weinberg equilibrium? CHOOSE ALL THAT ARE CORRECT. There can be no sexual selection. There must not be any selective advantage to a particular phenotype.