Which phrase best describes "honeydew"?
a. phloem sap leaving the anus of an aphid
b. phloem sap harvested as syrup
c. xylem sap separated from syrup
d. xylem sap forced out of the margins of leaves
Ans: a. phloem sap leaving the anus of an aphid
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A pinniped is observed as lacking external ears, and it appears to propel through the water using its hind flippers only. What kind of pinniped might this be?
a. Phocids b. Sirenia c. Eared seals d. Walruses
Which of the following is produced during the hydrogenation of vegetable oils?
a. HDLs b. LDLs c. trans fatty acids d. free radicals e. neuropeptide Y
Briefly explain why allergies, such as hay fever, are characterized as a hypersensitive immune
response. What will be an ideal response?
In bacteria, the first amino acid inserted into a polypeptide as translation is initiated is?
a. formyl-methionine b. methionine or formyl-methionine c. methionine d. alanine