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harkovskaia [24]
4 years ago
8

Question 2 and 3 plz!! I can’t seem to find the help I need !

Biology
1 answer:
Mrrafil [7]4 years ago
7 0
Carbon Dioxide (or CO2) is produced by the lungs I think because when you inhale, you breathe in oxygen, then you exhale the carbon dioxide in the lungs. That's actually 3 and 4. As for number 2, I want to say either the alvioli or however that's spelled but technically, the entire body uses oxygen so I'm not sure.
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Heart attack is an infectious disease? why?
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8 0
3 years ago
A scientist uses materials in her lab to turn one piece of dna into 100 copies of the same piece what process is the scientist u
jonny [76]

Answer: The correct answer is- Polymerase chain reaction.

Polymerase chain reaction is a technique in molecular biology that is used to produce multiple copies of a piece of DNA molecule through multiple cycles of three stages that are-

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4 0
3 years ago
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If you have a cold, what steps can you take to keep from<br> spreading it to other people? Explain.
alexandr402 [8]

Answer:

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5 0
3 years ago
Characteristics of mosaic?
timurjin [86]

Hi! the answer to your question is that A mosaic is a pattern or image made of small regular or irregular pieces of colored stone, glass or ceramic, held in place by plaster/mortar, and covering a surface. Mosaics are often used as floor and wall decoration, and were particularly popular in the Ancient Roman world.Let me know if I am wrong...

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3 years ago
18. Jamie weighs a glass of water and observes its weight to be 12 ounces. Jamie then adds 6
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Answer:

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Explanation:

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