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7th grade CBA #3

QuestionAnswer
Which of the following correctly shows how energy flows through a food chain? sun -> producers -> herbivores -> carnivores
In the energy pyramid, the width of the level represents available energy provided by organisms at that level. Which one most accurately represents the correct distribution of energy? largest to smallest: Producers, Primary Consumers, Secondary Consumers
Which organism has the most available energy: Top predator, herbivore, carnivore, producer producer
In any habitat, which group of organisms provides the primary source of energy for all other organisms? Producers
A reduction in deer population will have an effect on the amount of energy this ecosystem is able to provide for which of the following organisms? grass -> deer -> mountain lion mountain lion
Which organisms in the food chain is a primary consumer? plant -> beetle -> catfish -> hawk plant
Which of the following characteristics is shared by both primary and secondary consumer? Gains energy by eating other living things.
During the process of photosynthesis – radiant energy is converted into chemical energy
A test tube is filled with water and a green plant called elodea. When the plant is exposed to sunlight, it begins to produce bubbles.Which of the following is the most likely conclusion for the identity of the gas bubbles? oxygen
Which of the following describes an example of biomass decay in a habitat? Bacteria break down dead plants and add nutrients to the soil
What type of energy is released as decomposition takes place in a compost pile? Thermal
How does carbon dioxide cycle back and forth between plants and animals? Animals breathe out carbon dioxide, and plants take in carbon dioxide.
Nitrogen from living organisms is returned to the atmosphere by the action of – decomposers such as bacteria.
Created by: ckirkland
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