Natural sources of antioxidants do not include
a. vitamin C.
b. vitamin E.
c. orange vegetables.
d. green leafy vegetables.
e. O2
E
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In Figure 26.09 (above) the animals across are a lancelet, lamprey, salmon, lizard, and rabbit. If the salmon, lizard, and rabbit are an ingroup, which animals above would be an outgroup and which characteristics are necessary to be in the ingroup?
A. Lamprey and lancelet; notochord and vertebrae.
B. Lamprey only; vertebrae, hinged jaw, tetrapod, and mammary glands.
C. Lancelet and lamprey; hinged jaw, tetrapod, and mammary glands.
D. Lancelet, lamprey and salmon; hinged jaw, tetrapod, and mammary glands.
E. Lizard and rabbit; tetrapod and mammary glands.
In the process of quorum sensing, bacteria release signal molecules in _____ concentration as cell
density _____.
a. increasing; decreases d. decreasing; decreases b. increasing; increases e. a constant; increases c. decreasing; increases
Artificial electrical stimulation of a human's menthol-sensitive neurons would likely produce the sensation of _____
A) cold temperature B) hot temperature C) odor of pepper D) deep pressure
The advantages of the Pap smear as a means of cancer detection include
A) it is inexpensive and easy to perform. B) it is inexpensive and easy to perform, and it can detect reproductive tract cancers in both women and men. C) it can detect early-stage cancers and precancerous changes. D) it can detect reproductive tract cancers in both women and men. E) it is inexpensive and easy to perform, and it can detect early-stage cancers and precancerous changes.