The limpet-like Neopilina was thought to be extinct for over
a. 100 million years.
b. 175 million years.
c. 250 million years.
d. 350 million years.
e. 1 billion years.
D
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Which of the following is a mismatched term and description?
A. Secondary infection - infection spreads to several tissue sites B. Acute infection - rapid onset of severe, short-lived symptoms C. Mixed infection - several agents established at infection site D. Local infection - pathogen remains at or near entry site E. Toxemia - pathogen's toxins carried by the blood to target tissues
Smoking has been shown to cause all of the following EXCEPT
a. bronchitis. b. emphysema. c. lung cancer. d. coronary disease. e. healthy skin.
The phase of energy metabolism that is triggered by the expectation of food is the ________ phase.
Fill in the blank(s) with the appropriate word(s).
Which type of fish is likely to produce the smallest number of progeny from each mating?
A. An ovoviparous species B. An oviparous species C. A viviparous species