Blood flows directly from the left atrium to _____

a. the aorta c. the right atrium
b. the left ventricle d. the pulmonary arteries


B

Biology & Microbiology

You might also like to view...

Your microwave will not turn on, and you speculate that a circuit breaker in the house has been tripped. In scientific terminology, the steps would be described as:

A. forming conclusions from the results of experiments. B. developing an observation based on a hypothesis. C. developing a hypothesis based on an observation. D. testing a prediction generated from a hypothesis.

Biology & Microbiology

Xylem and phloem are types of

a. ground tissue. b. protoderm. c. vascular tissue. d. meristem. e. dermal tissue.

Biology & Microbiology

Why are valves important in veins?

What will be an ideal response?

Biology & Microbiology

Which of the following hormones is released by the posterior pituitary gland?

A. insulin B. thyroid-stimulating hormone (TSH) C. oxytocin D. follicle-stimulating hormone (FSH) E. None of the answer choices is correct.

Biology & Microbiology