Free GED SCIENCE Exam Braindumps
GED Section 3: Science Questions 86–90 (page: 19)

A person is interested in trilobites. A book on which subject would most likely furnish information about trilobites?

Meteorites are broken fragments formed from comets and by collisions between asteroids orbiting the Sun in the belt between Mars and Jupiter. Meteorites range in size from fine dust particles to bodies many miles in diameter that produce large craters when they strike Earth, Mars, or the Moon.
From what sources do many meteorites originate?

Nicotine patches are a popular smoking cessation method. Although they are effective for some people, not all nicotine patches work, and some doses work better than others. The graph below shows the effectiveness of nicotine patches for patients who participated in a 24-week study.
Based on the graph,


Whatpercentage of patients receiving the 21-mg nicotine patches remained off cigarettes after six weeks?

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The most realistic description of energy flow through an ecosystem is a food web that represents an interconnected series of food chains. In general, the greater the number of alternative channels through which energy can flow, the greater the stability of the food web and the ecosystem.

The diagram shows a typical food web for a wet meadow. The hawk and the fox obtain nourishment by preying upon rabbits, frogs, snakes, and mice. The fox may even eat grasshoppers. If, for example, the rabbit population is reduced, possibly because of bad weather during the breeding season, the fox and hawk would shift their predatory pressure to other forms of prey. The rabbit population would then have a chance to bounce back and the ecosystem would remain stable.
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Based on the diagram, which consumer would have the greatest chance of surviving if the amount of available prey changes during the different seasons?

Exhibit:

Based on the information and diagram, which slide shows the most positive response of paramecia to a stimulus?