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Biology Life on Earth

Biology

Quiz 28 :

How Do Ecosystems Work

Quiz 28 :

How Do Ecosystems Work

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Only a small percentage of the energy that arrives at the outer atmosphere of Earth reaches the surface and is then captured within ecosystems. What percentage is captured by photosynthetic organisms?
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Multiple Choice
Answer:

Answer:

D

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If a field contains approximately 1,000 kilocalories of energy in grass, which is eaten by crickets, which are eaten by birds, then approximately how many kilocalories of energy could be in the birds that live in this field?
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Multiple Choice
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Answer:

E

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The photosynthetic bacteria that form the basis of the food chain in Great Salt Lake are classified as:
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Answer:

B

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How much of the energy that reaches Earth's outer atmosphere from the sun is available for photosynthesis in plants at Earth's surface?
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The amount of energy lost as it passes from one trophic level to another is approximately:
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The atoms that make up the molecules in our bodies:
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Organisms that must rely on complex, high-energy molecules produced by other organisms for survival are:
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Which level of the energy pyramid has the greatest biomass?
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What happens to 99% of the energy that reaches Earth's atmosphere?
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A carnivorous plant, such as a sundew, may be considered both a ________ when it eats a predaceous spider.
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The majority of the energy on Earth originates from:
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If a bird eats an insect that ate a plant, the bird is considered a(n):
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The first trophic level of an ecosystem consists of:
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The amount of energy captured by plants and made available to consumers in an ecosystem is called:
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The _______ are an important and often overlooked group of organisms that release nutrients to the soil or water.
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The amount of life that an ecosystem can support is determined primarily by the:
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A deer that gets its energy from eating plants is a(n):
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A carnivore is usually a(n):
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If the plants in a community produce 500 grams of organic matter per square meter per year that is available for animals in the community to eat, this amount of energy is known as the:
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If a fox eats a rodent that ate a smaller insect that ate a plant, the fox is a(n):
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