Which bond is weakest?
a. ionic
b. double covalent
c. polar covalent
d. nonpolar covalent
e. hydrogen
ANSWER: e
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Which of the following statements is NOT true
concerning the results of Fred Griffith’s experiments? a. Mice injected with smooth (S) bacteria die. b. Mice injected with heat-killed, smooth bacteria die. c. Mice injected with heat-killed, smooth bacteria and live, rough (R) bacteria die. d. Mice injected with rough bacteria live. e. The rough bacteria received genetic material from the smooth bacteria.
The accumulation of amino acids and sugars in animal cells can occur through
A. coupled transport. B. glucose pumps. C. sodium-potassium pumps. D. proton pumps. E. ATP pumps.
Some toll-like receptors (TLRs) are found on the surface of host cells and recognize specific microbial molecules
Indicate whether the statement is true or false
Which of the following injuries is most likely to happen to the ankle?
A. muscular dystrophy B. sprain C. strain D. convulsion E. bursitis