The secretion of histamine by mast cells causes
a. vasodilation, bringing phagocytic cells to the site of infection.
b. invading bacterial cells to lyse.
c. invading bacterial cells to coagulate.
d. all of these.
e. none of these.
A
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____% of the energy found in nutrient molecules is lost as heat
a. 10 b. 25 c. 50 d. 75 e. 90
The tectal plate (corpora quadrigemina) is part of what portion of the brain?
A. Diencephalon B. Brainstem C. Thalamus D. Telencephalon E. Epithalamus
Which of the following does not have an endocrine function?
A. Urinary bladder B. Adipose tissue C. Liver D. Small intestine
During a lab practical, a student examines a tissue that is composed of a densely packed epithelium composed of square-shaped cells in a single layer. The epithelia are often cut into circles, and sometimes into parallel rows. What organ is the student most likely observing?
What will be an ideal response?