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3 years ago

A student collected the above data for this experiment. What error did he make? Explain. Mass of the Graduated Cylinder

2 answers:

5 0

What is wrong with the data of the experiment is the calculated mass of water. If there is water in the graduated cylinder and what is required is the exact amount of water, then the instrument used to measure the mass is not that accurate. Having only one decimal place is not enough to detect the mass of water in the cylinder.

denis23 [38]3 years ago

3 0

Answer:

The mass did not change after adding water, but it should have increased. The electronic mass balance may not have been tared properly. The student may have misrecorded the data.

Explanation:

these are the statements that show up after you write your answer and click "done." it will say "What information did you include in your answer? Check all that apply," and these are the answers you can mark off. so you may want to re-word them a little in your answer so it's not obvious you cheated. either way, you should get it right. hope this helps!

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A food web can be formed by more than one food chain, since the webs includes all possible interactions that can occur between individuals of different trophic levels.

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Based on the scheme shown in the image

<h3>1. How many food chains make up the food web? </h3>

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<em>Plant → Bird → Snake</em>
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The only autotrophic organism is the plant, since it is capable of manufacturing its nutrients from sunlight and inorganic matter.

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According to the scheme proposed, the bird is omnivorous, since it feeds on both plants and insects.

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In this case, the plant, the insect, the bird and the snake are part of more than one food chain.

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<u><em>Plant → Insect → Bird → Snake</em></u>
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As the ascent of the pyramid occurs —or at the upper trophic level— the amount of energy available decreases. This is because from one trophic level to another only 10% of the energy can be used. If a plant has 5000 Kcal available, the herbivore that consumes it can only use 500 Kcal.

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