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Zinaida [17]
3 years ago
13

Shawn will conduct a study by rolling a toy car down a ramp. He plans to set the

Biology
1 answer:
GalinKa [24]3 years ago
8 0

Answer:

  • Independent variable: Car weight (car + block with a mass of 10 grams)
  • Dependent variable: Speed (the time the car takes to descend the ramp)

Explanation:

As you can see in the question above, Shawn wants to check the speed that a car takes when going down a ramp, related to the weight of this case, that is, he wants to know the influence of the weight that the car presents, in its speed in going down a ramp.

In this type of experiment, we can consider the weight that the car presents as the independent variable. This is because independent variables are those that influence a result within the experiment. They happen without the influence of another variable and are factors that impose changes in the analyzed system.

The dependent variable, however, is the car's speed down the ramp. This is because the dependent variables are those that need and are influenced by the independent variable, to achieve a result that can be measured and analyzed.

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Answer:

Secondary succession

Explanation:

Ecological succession is the term used to describe any series of change in the composition of an ecosystem over a particular period of time. Ecological succession is made up of two types viz: primary succession and secondary succession.

Primary succession involves the formation of a brand new ecosystem by the colonization of a barren area of land e.g bare rock, where no life existed. Secondary succession, on the other hand, is the recolonization of an area by a new set of organisms because the previously existing organisms have been wiped out by certain disasters e.g fire outbreak, hurricanes etc. In secondary succession, there is soil, which makes it possible for new organisms to sprout quickly after the calamity.

Example of secondary succession is when a fire outbreak burns the organisms in a community, allowing the root of grasses to sprout after.

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3 years ago
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Answer:

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4 0
3 years ago
What happens to trna molecules after they deliver their amino acid to the ribosome?
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7 0
3 years ago
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Luba_88 [7]

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