When the concentration of glucose in the blood rises following the digestion of a meal, what is the hormonal response?
A) Increased amounts of both glucagon and insulin are released.
B) An increased amount of glucagon is released.
C) An increased amount of insulin is released.
D) Glucagon and insulin levels in the blood stay the same.
C
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Which type of microscopy enhances and amplifies slight changes in the phase of transmitted light?
A) differential interference contrast microscopy B) digital video microscopy C) fluorescence microscopy D) phase-contrast microscopy E) both choices A and D
What kind of symbiosis occurs between bioluminescent bacteria and its host?
a. Commensalism b. Mutualistic c. None of these choices d. Parasitism
The reproductive structures of some cycad species produce nectar, and insects play a role in the pollination of these species.
Answer the following statement true (T) or false (F)
The cells and signaling molecules involved in the initial stages of the inflammatory response are _____
A) phagocytes and chemokines B) dendritic cells and interferons C) mast cells and histamines D) lymphocytes and interferons