Which of the following would be an example of chemotaxis?
A. A white blood cell can move into and out of blood vessels.
B. Platelets are attracted to the rough surface of damaged blood vessels.
C. Red blood cells move due to pressure gradients generated by the heart.
D. A white blood cell moves toward an injury site due to the release of certain chemicals by injured cells.
Answer: D
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A) progesterone B) glucagon C) cortisol D) thyroxine E) leptin
The hormone ADH is released from the anterior lobe of the pituitary gland
Indicate whether the statement is true or false
Joints serve as fulcrums for muscle action
Indicate whether the statement is true or false
Which of the following delivers blood to the right atrium?
a. coronary sinus b. inferior vena cava c. superior vena cava d. all of the above