During phase 2 of the cardiac cycle, which of the following events are occurring? group of answer choices atria relax (diastole) while the ventricles contract (systole); av valves are closed while the semilunar valves are open and blood moves from the right ventricle into the pulmonary trunk, while blood moves from the left ventricle into the aorta. blood moves from the right ventricle into the pulmonary trunk, while blood moves from the left ventricle into the aorta. atria relax (diastole) while the ventricles contract (systole); av valves are closed while the semilunar valves are open. atria contract (systole) while the ventricles relax (diastole); av valves are open while the semilunar valves are closed. atria and ventricles are relaxed (diastole); av valves are open while the semilunar valves are closed.

Sea levels are rising due to climate change while increasing numbers of people are moving into coastal areas. to accommodate more people, there has been increased construction of beachfront resorts and condominiums. how is this impacting sea turtle numbers and biodiversity and why? a. the increased human population in coastal areas has meant that more food is available to the turtles (e. g., dropped food, waste from restaurants), which has led to an increase in the numbers and diversity of sea turtles. b. there has been very little change in the numbers and biodiversity of sea turtles because the planet is so vast that they can simply relocate to less crowded beaches. c. this has resulted in a decrease in numbers and diversity of sea turtles because it is restricting available nesting sites, and hence reproduction. d. this has resulted in an increase in numbers and diversity of sea turtles because people are around to protect them from natural predators.

Anurse is caring for a client who is learning how to take care of a newly created colostomy. when observing a return demonstration of the colostomy irrigation, the nurse evaluates that more teaching is required when the client carries out what procedure?

How do the sperm cells get from the stigma to the ovules? a. they slide down the petals to the bottom of the flower. b. they travel through pollen tubes. c. they travel along filaments. d. insects carry the sperm cells from the stigma to the ovules.