What is the chordate feature still present in the human adult?
a. pharyngeal gill slits
b. nerve cord
c. notochord
d. tail
e. nerve cord and notochord
b
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An animal's metabolic rate is best defined as:
A. its overall rate of energy use. B. the total amount of oxygen consumed by an animal. C. a measure of how quickly ATP is produced by body cells. D. a measure of how quickly food is digested. E. its overall activity level.
Which flagellate(s) have modified mitochondria and make ATP without oxygen?
a. trypanosomes b. euglenoids c. rhizarians d. diplomonads and parabasalids e. diatoms and brown algae
For the following statements, select the best choice of the four evolutionary processes listed below.
A. This process produces new genetic variation within a species. B. This process can rapidly offset the effects of genetic isolation when two populations come into secondary contact. C. This is most likely to lead to the loss of genetic variation in a small population. D. The reduced expression of one phenotype in comparison to another in the next generation is an example of this. E. The occurrence of mimicry is best explained as the ultimate result of this process.
If your pulse is 70 beats per minute, how fast is your heart beating?
A. 140 beats per minute B. 35 beats per minute C. 70 beats per minute D. 80 beats per minute E. 120 beats per minute