3 years ago

What is the best topic to choose for a science fair project

1 answer:

7 0

This isn't a topic. But a good tip is to choose something you find interest in. This way you can present your project in a good, happy manor and actually enjoy doing the project.

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Why chemical reactions are essential to living creatures

den301095 [7]

Making water is a chemical reaction which is essential to all living creatures. Without the chemical reaction, we wouldn't be able to quench our thirst

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3 years ago

Given what you know about the endosymbiotic theory, which region of the chloroplast below would you expect to be derived from th

san4es73 [151]

Answer:

Photosynthetic lamellae

Explanation:

The cyanobacteria were the first successful photosynthetic cells present on the Earth which were able to convert the light energy into the chemical energy.

The endosymbiosis theory suggested that these cyanobacteria were engulfed by the eukaryotes and the cyanobacteria get transformed into the chloroplast.

The region of the chloroplast that was formed in the cyanobacteria before the endosymbiosis happened was the photosynthetic lamellae which contained the chlorophyll molecule and thus is the correct answer.

Thus, Photosynthetic lamellae are the correct answer.

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3 years ago

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Gnesinka [82]

I think this would be the environment. That's my guess

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3 years ago

The wing of a bird and the leg of a horse are very different looking structures. Although they look different, bird wings and ho

Viefleur [7K]

Hi!

It is D, homologous structures.

Hope this helps!

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4 years ago

which of the following fossil is best described as forming when minerals replace all of the organisms

Andrei [34K]

I think it is a petrified fossil but you didn't give any choices

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4 years ago