When does the human body produce the most lactic acid?
a. after falling into a deep sleep
b. during prolonged exercise
c. after eating a large meal
d. while drinking a glass of milk
b. during prolonged exercise
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The concept of a species was proposed by
A. Charles Darwin. B. John Ray. C. Carolus Linneaus. D. Erasmus Darwin. E. George Cuvier.
Which of the following is most likely the cause of
the current extinction crisis? a. asteroid impact b. human activity c. adaptive radiation d. tectonic activity e. climate change
The total DNA in a cell is referred to as the:a
genome. b. cDNA. c. library. d. chromosomal DNA. e. Human Genome project
One disadvantage of the direct microscopic count method of determining cell numbers is that:
a.it is an indirect method b. it cannot differentiate between live and dead cells c. it can detect only viable cells d. the orifice gets clogged frequently