What is the function of a Toll-like receptor?
A. to bind to surface molecules present on
phagocytes
B. to bind to cytokines
C. to bind to surface molecules present on
pathogens
D. to facilitate the extravasation of
phagocytes
C
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New mothers may benefit from the aid of lactation consultants when learning to breastfeed. These consultants give advice on technique, and help the mother to feel relaxed and confident. What hormone is associated with calm, warm emotions and is also critical for the milk let-down reflex?
A. prolactin B. estradiol C. oxytocin D. mammotropin
Agarose is a polymer of galactose, which is a _________-carbon sugar
a. 5 b. 6
A(n) ________ is a global outbreak of disease
Fill in the blank(s) with correct word
The stomata
a. open at night in most plants. b. are open when the guard cells are swollen with water. c. close when water moves into the guard cells. d. are covered by the cuticle to reduce water loss. e. fit all of these descriptions