You should know exactly how to use a food internet to identify producers, consumers, and also decomposers. You need to know the pathway of power transfer with trophic levels and also the palliation of accessible energy at succeeding trophic levels. You must know just how matter and also energy relocate through the water and also carbon cycles.

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A team the ecologists it was observed feeding trends of several populations in the desert. The power pyramid shown below depicts the feeding patterns the ecologist observed.

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Which the the following finest explains the distinction in the amount of available energy in the trophic level of the desert ecosystem?

A. There is much less energy available in the producers because their tissues are less thick than those at higher trophic levels.

B. Over there is more energy available in the 2nd trophic level due to the fact that less power is necessary for hunting contrasted to the higher trophic levels.

C. Over there is an ext available energy in the birds of prey since they have greater muscle mass because that storing power than organisms in reduced trophic level have.

D. There is less obtainable energy in the 4th trophic level because of the lose of energy through management in each of the reduced trophic levels.

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Example Two


A chart of a food web is presented below.

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Which biology receives the the very least amount of energy from the producers?

A. Hawk

B. Rabbit

C. Grasshopper

D. Mouse

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Example Three


The diagram listed below shows the cycling of nutrient in one ecosystem.

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The removed of i beg your pardon of the complying with groups would reason an instant decrease in the lot of energy flowing with the system?

A. Producers

B. Consumers

C. Decomposers

D. Inorganic nutrients

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Example Four


Complete burning of plant material returns carbon primarily to the

A. Herbivores.

B. Water.

C. Vegetation.

D. Atmosphere.

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Example Five


Which of this organisms would certainly most most likely be discovered at the optimal of an energy pyramid?

A. Clams - a main consumer

B. Sardines - a major consumer

C. Sharks - a secondary consumer

D. Kelp - a major producer

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Example Six


The diagram listed below shows the circulation of carbon in a terrestrial ecosystem.

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Which will most likely occur if the decomposers are removed from the carbon cycle?

A. The quantity of carbon dioxide in the environment will increase.

B. The amount of carbon dioxide in the environment will decrease.

C. The amount of carbon dioxide provided by producers will increase.

D. The amount of carbon dioxide needed by consumers will decrease.

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Example Seven


In a process called transpiration, plants get rid of excess water with pores in the leaves called stomata. This overfill water is then released right into the setting as component of the water cycle. I m sorry of the following terms finest describes how the released water beginning the atmosphere?

A. Condensation

B. Precipitation

C. Evaporation

D. Capillary action

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Example Eight


The frame of organic molecules necessary to every organisms is composed mainly of carbon atoms. Which procedures are associated in the to ride bicycle of carbon within an environment?

A. Photosynthesis and respiration

B. Evaporation and also condensation

C. Transcription and translation

D. Diffusion and transpiration

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Example Nine


Which the the adhering to statements is true around natural systems?

A. Consumers type the bottom level of both the power pyramid and the biomass pyramid.

B. Producers room at the bottom level the both the energy pyramid and the biomass pyramid.

C. Producers room at the bottom that the power pyramid, however at the peak of the biomass pyramid.

D. Consumers room at the bottom that the power pyramid, however at the peak of the biomass pyramid.

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Water & carbon Cycles
Ecosystem Ecology
Trophic level
Energy move in Ecosystems
Global Carbon bicycle

In your Book


General biology - sections 13.3-13.6, pgs. 406-419

Honors biologic - part 3.2-3.4, pgs. 60-73


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Web Game: Food Webs and also Energy deliver - Glencoe


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