The extent to which a test is measuring what it is intended to measure

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#Question id: 10672

#Section 2: Evolution

Which of the following is incorrect match of protective strategy done by organism?

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#Question id: 11250

#Section 4: Behavioural Ecology

The equation to describe the s-shaped growth curve that illustrates logistic growth is

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#Question id: 12100

#Section 1: Ecology

Prairie dogs once covered the expanses of the Great Plains. Their grazing made the grass more nutritious for the huge herds of bison, and a variety of snakes, raptors, and mammals   preyed on the rodents. In fact, the black- footed ferret (now endangered) specialized in prairie dog predation. Today, growing housing and agricultural developments have covered many prairie dog towns. Which of the following statements about prairie dogs is true?

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#Question id: 9196

#Section 2: Evolution

If all individuals in the last remaining population of a particular frog species were all highly elated, which type of diversity would be of greatest concern when planning to prevent the species from going extinct?

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#Question id: 4571

#Section 2: Evolution

Evolutionary trees such as this are properly understood by scientists to be