77.
(A) but they’re so much work
(B) and they’re so much work
(C) so they’re so much work
(D) they’re so much work

73. (A) if the doctor is available (B) whether the doctor available (C) if is the doctor available (D) that the doctor is available

74. (A) Do you mind to wait? (B) What would you like to do? (C) Would you mind waiting a little longer? (D) How about you?

75. (A) Here you are. (B) Thank you. (C) There I am. (D) It doesn't matter.

76. (A) How beautiful cat. (B) How a beautiful cat. (C) What beautiful a cat. (D) What a beautiful cat.

78. (A) Don't bother me. (B) I don't agree with you. (C) Good point. (D) Good job.

79. (A) how take care of a bird or a fish (B) what to take care of a bird or a fish (C) how to take care of a bird or a fish (D) what taking care of a bird or a fish

80. (A) I'm fine (B) you’re wrong (C) awesome (D) you’re right

1. Which of the following eukaryotic organisms is both autotrophic and heterotrophic? (A) yeast (B) humans (C) Venus fly trap (D) redwood trees (E) Mushrooms

2. The fatty acid designated 18:2c9,12 is best described as a _______ fatty acid. (A) saturated (B) unsaturated (C) polyunsaturated (D) hydrogenated (E) partially hydrogenated

3. When glucagon binds to its receptor on a liver cell, which of the following sequence of events occurs to activate protein kinase A? (A) activation of adenylate cyclase, activation of G protein, production of cAMP (B) activation of G protein, activation of adenylate cyclase, production of cAMP (C) activation of G protein, production of cAMP, activation of adenylate cyclase (D) production of cAMP, activation of adenylate cyclase, activation of G protein (E) none of the above