题目内容

Danica is trying to encourage her classmates to donate books for the fund-raiser and book-drive for the local library. Danica will donate $35.00, plus $0.07 for each book donated by her classmates. Which of the following equations gives Danica&39;s donation, d dollars, if b books are donated by her classmates？

A. d=35+0.07b
B. d=35+0.7b
C. d=35+7b
D. d=35.07b
E. d=42b

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In Study 1, the most likely reason the marine sticklebacks that were placed in the pond were tagged was to ensure that the:

A. length of each stickleback could be measured.
B. parents could be differentiated from the offspring.
C. number of plates on each stickleback could be counted.
D. offspring collected would be genotyped only once.

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A researcher predicted that moving a marine stickleback population to a freshwater environment would result in an increase in the fraction of offspring with the low phenotype. Do the results of Study 1 support this prediction？

A. Yes, because the FCO for the low phenotype was about 0.13 greater in July 2007 than it was in September 2006.
B. Yes, because the FCO for the low phenotype was about 0.18 greater in July 2007 than it was in September 2006.
C. No, because the FCO for the low phenotype was about 0.21 less in July 2007 than it was in September 2006 .
D. No, because the FCO for the low phenotype was about 0.28 less in July 2007 than it was in September 2006.

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问：做一个等腰梯形怎样精确控制它的大小？

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问：怎样使文字边缘填充颜色或渐变色？

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A. d=35+0.07b B. d=35+0.7b C. d=35+7b D. d=35.07b E. d=42b

In Study 1, the most likely reason the marine sticklebacks that were placed in the pond were tagged was to ensure that the:

A researcher predicted that moving a marine stickleback population to a freshwater environment would result in an increase in the fraction of offspring with the low phenotype. Do the results of Study 1 support this prediction？

问：做一个等腰梯形怎样精确控制它的大小？

问： 怎样使文字边缘填充颜色或渐变色？

A. d=35+0.07b
B. d=35+0.7b
C. d=35+7b
D. d=35.07b
E. d=42b

问：怎样使文字边缘填充颜色或渐变色？