The incubation time of birds varies from _____ to _____ weeks
Fill in the blank(s) with correct word
2, 4
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The portal vein is formed by the merger of the
A. gastric and splenic veins. B. inferior mesenteric vein (IMV) and gastric vein. C. splenic vein and superior mesenteric vein (SMV). D. inferior mesenteric vein (IMV) and splenic vein.
Which of the following secrete amylase?
A. Stomach and duodenum B. Pancreas and liver C. Stomach and liver D. Pancreas and salivary glands E. Pancreas and duodenum
Which immune response has a shorter lag phase in which more antibody levels peak more rapidly?
A) inflammation response B) primary immune response C) passive immunity D) secondary immune response
Which of the following helps explain why elderly people have trouble with thermoregulation?
A. Their skin has less collagen. B. The epidermis becomes thinner. C. They have fewer sweat glands. D. They have fewer sebaceous glands.