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Oksana_A [137]
3 years ago
9

What important role do unicellular organisms play in sustaining life on Earth?

Biology
1 answer:
vivado [14]3 years ago
4 0
They are the decomposers, they break down all the dead and decaying matter on earth returning them to the environment so they can be used again. They are vital in the nitrogen cycle as they fix the inert nitrogen from the air into nitrates in the soil for plants to absorb, providing essential nutrients for the producers in the food chain to use.
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Which describes the Dewey Decimal system
GaryK [48]

Answer:

Option 2, or B: a way of classifying books

Explanation:

Dewey Decimal system definition = The Dewey Decimal Classification (DDC), colloquially the Dewey Decimal System, is a proprietary library classification system first published in the United States by Melvil Dewey in 1876.

What is the Dewey Decimal system? Well, the definition says it is a proprietary library classification system.

So..

Our answer is 2 or B: a way of classifying books.

Hope this helps!

- Melanie

8 0
3 years ago
List two ways in which an invasive species can be introduced to a new environment.
shtirl [24]

Answer:

Hitched a ride or Humans brought it and planted it.

Explanation:

4 0
3 years ago
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How does carbon move from the biota to the atmosphere? view available hint(s) how does carbon move from the biota to the atmosph
aniked [119]
Carbon dioxide is released during cellular respiration.
5 0
3 years ago
A gene mutation is a change in the sequence of nucleotides that occurs during cell replication (mitosis and meiosis)within a sin
Shalnov [3]

True

Changes in the transcription of mRNA or the translation of a polypeptide are not considered to be mutations because they are not permanent changes to the cell.

Explanation:

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Learn More:

For more on mutations check out;

brainly.com/question/781815

brainly.com/question/3069156

brainly.com/question/2619737

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7 0
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Which of these is not a living organism?
Oduvanchick [21]
I would say D and A are your answers :)
5 0
3 years ago
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