An EKG with a higher QRS complex than normal in the same person... Group of answer choices Must mean that atrial repolarization is smaller than usual so we see more ventricular repolarization None of these are true Must mean that the person is exercising and innervating more cardiomyocytes Must mean that the end diastolic volume is higher Must mean that the ventricular contraction is stronger than normal

Some species of wasps are social. the queen starts a colony from scratch each spring. she builds a small nest, and lays and raises a group of female workers. the workers enlarge the nest while the queen continues to lay eggs. unfertilized eggs become males that mate with newly hatched females. all of the wasps except the newly fertilized females die by the summer. which best describes this behavior? a)it is beneficial only to the males that do not fertilize eggs. b)it is beneficial only to the female workers that are not fertilized. c)it is beneficial to each one of the individual colony members. d)it is beneficial to the whole species, but not to all of the individual members.