Among the animals that feed on color- changing spiders are a few species of bat, which find their prey through sound echoes.
Certain animals that feed on color-changing spiders do so only sparingly in order to keep from ingesting harmful amounts of spider venom.
Color-changing spiders possess color discrimination that is more acute than that of spiders that lack the ability to change color.
Color-changing spiders spin webs that are readily seen by the predators of those spiders.
The color discrimination of certain birds that feed on color-changing spiders is no more acute than that of human beings.
3. Which of the following most logically completes the argument below? Each year every employee of SAI Corporation must enroll in one of the two health insurance plans offered by SAI. One plan requires a sizable monetary contribution from employees; the other plan is paid for entirely by SAI. Many SAI employees enroll in the plan requiring employee contributions. This fact does not show that they feel that this plans benefits are superior to those provided by the plan requiring no employee contribution since----.
the plan that requires an employee contribution costs and enrolled employee significantly less per year than do typical health insurance plans offered by corporations other than SAI
only SAI employees who have worked for SAI for at least fifteen years are eligible to enroll in the plan paid for entirely by SAI
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