The first organism ever cloned by researchers was Dolly the sheep in 1997
Indicate whether the statement is true or false
FALSE
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Respiratory surfaces in all vertebrates have
A. moist epithelia. B. large surface areas. C. thin epithelia. D. a very high degree of vascularization. E. All of the answers for this question are correct.
Bones are important in balancing which mineral in the body?
1.sodium 2.potassium 3.iron 4.magnesium 5.calcium
In comparing the chromosomes of humans, chimpanzees, gorillas, and orangutans, what type of genomic evolution has occurred in chromosome 2 in the human, as compared with the other three species?
A. fusion. B. duplication. C. inversion. D. inversion followed by duplication. E. fragmentation.
The oxygen content of dry air in the atmosphere
A. varies depending on the altitude. B. is about 0.03%. C. is inversely proportional to the partial pressure of oxygen. D. is about 78.1%. E. is about 21.0%.