What is true about heart valves?
a. they enforce a one-way blood flow through the heart.
b. they operate passively (no active contraction required).
c. they separate atria from ventricles, and ventricles from the large arteries that leave them.
d. they enforce a one-way blood flow through the heart, operate passively (no active contraction required), and separate atria from ventricles, and ventricles from the large arteries that leave them?
Answers (1)
Know the Answer?
Not Sure About the Answer?
Find an answer to your question 👍 “What is true about heart valves? a. they enforce a one-way blood flow through the heart. b. they operate passively (no active contraction ...” in 📗 Biology if the answers seem to be not correct or there’s no answer. Try a smart search to find answers to similar questions.
Search for Other Answers
You Might be Interested in
Biology Bob is angry that Chemistry Carl has sent a vase of red roses to his girlfriend, Phyllis Physics. Bob dumps 10% saltwater into the vase. Rose cells have about 1% salt inside.
Answers (1)
What is a microorganism [a microbe] that is innocuous [not harmful] to man or to a given animal species? It is a living being which does not possess the capacity to multiply in our body or in the body of the animal.
Answers (1)
Why is Earth an example of a system?
Answers (1)
Monarch butterflies are protected from birds and other predators because of cardiac glycosides they incorporate into their tissues from eating milkweed when they were in their caterpillar stage.
Answers (1)
What do you call the flexible layer which separates the inside of a cell from the environment? A. nucleus B. ribosomes C. cell membrane D. mitochondria
Answers (2)
New Questions in Biology
Which of these is true for bacteria because they are prokaryotic cells a - they can destroy neutrophils b - they are much smaller than lymphocytes c - they can invade macrophages d - they are much larger than killer T cells
Answers (1)
What are some non-examples of carbohydrates
Answers (1)
A person with type O blood can give genes a. AB. b. AO. c. BO. d. OO.
Answers (1)
List the reasons why food chains to not send to exceed 4 links
Answers (1)
How do organisms with small genomes, such as escherichia coli, carry out so many different biochemical reactions?
Answers (1)