What type of cell found in the skin and mucosal linings secretes histamine?

A) basophil
B) monocyte
C) dendritic cell
D) macrophage
E) mast cell


Ans: E) mast cell

Biology & Microbiology

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Which of the following does not take place during the first of the two phases of photosynthesis?

a. Light energy is absorbed by electrons in the chlorophyll. b. Water is split. c. ATP and electron carriers are formed. d. Carbon dioxide is fixed. e. Oxygen is released.

Biology & Microbiology

A utilitarian approach to a bioethical issue would ________

A) focus on absolute principles of "right" or "wrong" B) emphasize intentions, not outcomes of the decision C) be designed to produce the greatest positive effect for the greatest number of people D) always ensure that all actions are favorable for all parties E) never allow the end result of a decision to justify the means

Biology & Microbiology

In women, the combined effects of estrogen and progesterone cause a decrease in GnRH levels

Indicate whether the statement is true or false

Biology & Microbiology

________________ is a directional response to light.

Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology