Which of the following best predicts a long term effect of the differences between the E and Z strains

Afamily has a y-linked disease that affects the father. what is the chance of a male offspring inheriting the same disease? oa. 100% ob. 50% oc. 25% d. 0%

Which statement is true for bacteria a. bacteria have complex internal structures b. all bacteria are spiral in shape c. all bacteria cause disease in animals d. bacteria break down some foods

Natural selection changes allele frequencies because some survive and reproduce more successfully than others.