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Lynna [10]
3 years ago
5

1. Explain why living things need carbon and nitrogen. What are they used for?

Biology
1 answer:
amm18123 years ago
8 0

Answer:

Explanation:

all living organisms are built of carbon compounds. Nitrogen fixation: special bacteria convert the nitrogen gas into ammonia that plants then use. ... nitrogen is the required nutrient for living things to produce organic molecules. it's the building block of DNA, RNA, proteins, and nucleic acids.

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Answer:

Methods Of Separating Mixtures

Handpicking.

Threshing.

Winnowing.

Sieving.

Evaporation.

Distillation.

Filtration or Sedimentation.

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Mixtures can be separated using a variety of techniques. Chromatography involves solvent separation on a solid medium. ... Evaporation removes a liquid from a solution to leave a solid material. Filtration separates solids of different sizes.

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3 years ago
B. Describe cellular respiration, as represented by this model .
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Where's the image?...

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Answer: CO2 in the atmosphere

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Thus, this removal of CO2 from the atmosphere provide a natural solution to prevent the gas accumulation in the atmosphere, which is often generated by human activities and natural causes.

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3 years ago
What are viruses? (not computer viruses)
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Answer:

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2 years ago
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The prominent indentation on the medial surface of the kidney is the:
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