During platelet plug formation, platelets release _____ and endothelial cells release ____ which lead to vasoconstriction
A.
endothelin; thromboxane
B.
erythropoietin; thromboxane
C. thromboxane; histamine
D.
histamine; heparin
E.
thromboxane; endothelin
E
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The professional that works in a lab and cares for the animal by monitoring the health and providing basic care is called the:
a. laboratory animal technician c. animal behaviorist b. laboratory veterinarian d. research scientist
If a daughter cell has 16 chromosomes, how many chromosomes did the parent cell originally have before it underwent mitosis?
A. 4 B. 8 C. 16 D. 32
Which of the following provides collateral arterial circulation in the legs?
a. genicular arteries b. great saphenous vein c. ulnar collateral d. both a and b
The ________ is the gonad and the ________ is the gamete
A) semen; sperm B) sperm; semen C) testis; ovary D) testis; semen E) testis; sperm