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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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HELPPPPPP QUICK please!
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HI~ I hope this helps

(these answers were hand-written meaning I did not copy and paste so, feel free to use the answers freely)

1.

When ecosystems change rapidly the fundamental environmental cycles such as the circulation of water, carbon and nutrients can change as ecosystems depend on them. The usage of factors such as freshwater, carbon dioxide emissions and fertilizer provides a large benefit to humas therefore meaning, that large and rapid changes to an ecosystem could also effect the things we as humans rely on.

2.  

Complex organic matter is broken down by decomposers into carbon dioxide, water etc. The ecosystem is affected based upon the fact that the decomposition of organic matter that is produced by plants, animals and soil organisms is an important process which affects the different important ecosystem processes like nutrient cycling and carbon sequestration.

3. (could have two answers- I recommend the second)

Adaptation- due to the mutation process which results in changes in the structure and function of organisms, these ecosystems would be different as well as unique. The organisms which possesses the traits needed to adapt could then survive as its unique characteristics due to mutation would provide a strong ability

Rise in temperature- If the temperature located on earth was to rise, organisms would have a higher living rate as bacterial life flourishes in warmer temperatures and dies out in colder ones.

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~The rapid change of increased food production provides better life sustainability to those living in the ecosystem.

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5.

~Rapid growth of things such as phytoplankton which cause dead zones are harmful to the ecosystem. Dead zones create zones where too much oxygen is consumed resulting in areas where plants and sea life can no longer survive.

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