How many years is the average life span of a species on Earth?
A) 1000
B) 100,000
C) 1 million
D) 100 million
C
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What marine biology laboratory inspired other facilities of the same kind?
a. Marine Biological Laboratory at Woods Hole b. Friday Harbor Laboratories of the University of Washington c. Museum of Comparative Zoology at Harvard University d. Scripps Institute of Oceanography in California
Kauai, the first of the big islands of the Hawaiian
Archipelago, rose from the sea more than _________ years ago. a. 5 billion b. 1 billion c. 5 million d. 1 million e. 400,000
What two tissues transport materials throughout the entire plant body?
a. sclerenchyma and xylem b. phloem and xylem c. parenchyma and xylem d. sclerenchyma and collenchyma e. epidermis and xylem
At body temperature, which of these combinations is most likely to result in the digestion of proteins?
Select one: a. water, pepsin b. HCl, pepsin c. bile, pepsin d. sodium bicarbonate, pepsin e. pepsin, HCl, sodium bicarbonate