Early in Earth's history, there was a massive "supercontinent" known as ____
a. Gondwana
b. Pangea
c. Botswana
d. Pellagra
e. Panagra
ANSWER: b
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You have entered a 5K race. As you finish the last 50 yards you are breathing harder than at the start of the race and sweating profusely. This is an example of the _______________law of thermodynamics because ______ is increasing
A. first; entropy B. second; entropy C. first; body temperature D. second; body temperature E. None of these choices are correct; overall energy levels have not changed.
Outline three properties of genes for which the Watson–Crick model offers an explanation
What will be an ideal response?
An example of pharming is ____
a. photosynthetic bacteria that clean up oil spills b. transgenic sheep that produce a protein required for normal blood clotting in humans c. E. coli that synthesize restriction enzymes for use in genetic engineering d. yeast that produce ethanol for use as fuel in vehicles e. a genetically modified crop plant that is resistant to pesticide
Early primates arose
a. in tropical forests of East Africa. b. in temperate savanna and grassland habitats. c. near rivers, lakes, and streams in the East African Rift Valley. d. in caves with abundant supplies of insects. e. in all of these places.