Which of the following statements is not correct?
a. Water heats up and cools down very quickly.
b. The amount of heat required to raise the temperature of 1 g of water 1 ?C is one calorie.
c. Due to hydrogen bonds, water has a high surface tension.
d. Large bodies of water have relatively constant temperatures.
e. When one gram of water evaporates, it removes heat.
A
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Which of the following statements is correct?
A. Achaea are part of the same domain as bacteria in the classification of life. B. Archaea are typically multicellular organisms. C. Archaea are older organisms than eukaryotes. D. Archaea are made up of eukaryotic cells.
Global warming has led to less snow cover in some areas. Snow cover provides insulation for
some burrowing, hibernating animals. In a population of rodents, some animals have slightly thicker fur, and animals with this trait are more likely to survive the winters with low snow cover and thus produce offspring in the spring. This scenario is an example of
a. an adaptation. b. evolution. c. natural selection. d. homology.
A testcross involves
a. two F1 hybrids. b. an F1 hybrid and an F2 offspring. c. two parental organisms. d. an F1 hybrid and the homozygous dominant parent. e. an organism of dominant phenotype but unknown genotype and an organism that is homozygous recessive for that trait.
Suppose you estimate the following regression of a Movie's ticket sales and the season of year (Summer =1 if in May, June, July, August, =0 otherwise) that movie's initial release was in: Sales = 295,342 + 40.24 Summer. You are willing to believe you have a random sample of store locations, and a sufficiently large sample size. Which statements are well justified by the regression results?
A. Moving the scheduled release of a movie from the winter to the summer will increase its sales by 40.24. B. Movies released in the summer tend to have higher ticket sales. C. Moving the Jurassic World release date to Christmas instead of 4th of July weekend, would have resulted in ticket sales of 295,342. D. Promotional activities increase the number of movie tickets sold holding other factors fixed.