Cytotoxic T cells are like natural killer (NK) cells because they both ________.
A. participate in the immune response
B. secrete perforins
C. secrete interferons
D. secrete tumor necrosis factor (TNF)
E. participate in innate immunity
Answer: B
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When heart rate increases, the time spent in
A) systole increases. B) diastole increases. C) all phases decreases but most of the decrease is during systole. D) all phases decreases but most of the decrease is during diastole. E) isovolumetric contraction increases.
Solutes, regardless of size, are able to move freely between compartments because water carries them along the osmotic gradients
Indicate whether the statement is true or false
Why is anatomical terminology necessary?
What will be an ideal response?
In the centrifuged sample of blood illustrated, what blood components are contained in the layer labeled number 3?
A. Plasma and water B. Leukocytes and platelets C. Plasma, water, waste materials, and electrolytes D. Erythrocytes E. Leukocytes and waste materials