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romanna [79]
3 years ago
6

Emma is curious to see how fertilizer makes a plant grow larger. After doing some research, she believes that the chemicals with

in the fertilizer will make a plant increase in size. She also believes that plants that do not receive fertilizer will be smaller in size. Emma plans to put the same type of plant seed into 6 pots containing soil and fertilizer and monitor how the plants grow. She runs out of fertilizer, though, and decides to put sand into 3 of the pots instead of fertilizer and soil. After the experiment finishes, Emma observes that the plants that had fertilizer grew much larger than the plants with sand. She finally concludes that fertilizer greatly increases the size of a plant. Why is her conclusion invalid?
Biology
1 answer:
CaHeK987 [17]3 years ago
7 0

Her conclusion is invalid because using sand instead of soil slows down plant growth. Fertilizer, on its own, does not 'greatly' increase the size of the plant.

The correct way to do this experiment would be to keep all other parameters same, except the fertilizer. This will give her accurate results.

If this helps you, please mark Brainliest! :)

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The theory of evolution first formulated in Darwin's book is the process by which organisms change over time as a result of changes in heritable physical or behavioral traits that allow them to better adapt to its environment, survive and have more offspring.

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Along with Buffon and Lamarck, Darwin supported the ability of species to change over time.

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