Aquatic Ecosystem MCQ
1. It is best to say that marine debris _______.
Answer
Correct Answer:
All of the above
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2. A healthy, balanced ecosystem has _______.
Answer
Correct Answer:
More producers than consumers
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3. The great pacific garbage patch will be difficult to physically clean up because _______.
Answer
Correct Answer:
All of the above
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4. As you descend from the ocean surface to the deeper layers of the ocean ____________.
Answer
Correct Answer:
The temperature drops
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5. Eutrophication in lakes is frequently the direct result of __________.
Answer
Correct Answer:
Nutrient enrichment such as nitrate and phosphate runoffs from land
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6. A cow's herbivorous diet indicates that it is a(n) __________.
Answer
Correct Answer:
Primary consumer.
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7. In a forest ecosystem, a robin and a squirrel live in the same tree. the two organisms _____.
Answer
Correct Answer:
Share the same habitat
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8. The principle difference between where salt marshes and mangrove forests grow is _______.
Answer
Correct Answer:
The salinity of the water
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9. An ecosystem ________.
Answer
Correct Answer:
Encompasses all the organisms and the physical and chemical environment within an area
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10. The fossil record suggests that whales ________.are not closely related to dolphins and porpoises, despite a superficial similarity
Answer
Correct Answer:
Are closely related to land mammals such as pigs, hippos, and cows
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11. Organic and inorganic materials, water, air, and living organisms together make up ____________...
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12. One common way to determine what is considered a big cat, is a feline that can ________..
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13. In a working ecosystem such as the arctic tundra, all of the following exist except _______. ..
Answer
Correct Answer:
Reduction in the competition for resources .
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14. An ecosystem is unlikely to be limited by the supply of _____ because it is obtained from the air.
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15. The principle characteristic distinguishing marine and freshwater ecosystems is _______.
Answer
Correct Answer:
Dissolved salt
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Biology MCQs | Topic-wise
