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ehidna [41]
3 years ago
5

How are cyanobacteria related to the increases in oxygen levels of the atmosphere?

Biology
2 answers:
DIA [1.3K]3 years ago
6 0
Yes, Cyanobacteria are a type of plankton. They are believed to be the first organisms, which produced Oxygen.
SVEN [57.7K]3 years ago
4 0
Cyanobacteria became the first microbes to to produce Oxygen (O2) as a product of Photosynthesis. 

Hope this helps!
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Viral genomes may comprise Choose one: A. double-stranded RNA. B. double-stranded DNA. C. double or single-stranded DNA or doubl
wlad13 [49]

Answer:

The correct answer is- C. double or single-stranded DNA or double or single-stranded RNA.

Explanation:

All the viruses are intracellular parasites which means they obtain their nutrition from their host. Viruses do not have cellular level of organization. They only have their nucleic acid which is surrounded by a protein coat called a capsid.

The nucleic acid in viruses can be of different types. It can be single or double-stranded DNA or single or double-stranded RNA. Their genome can be linear or circular. They inject their genetic material in their host and introduce it in the host genome. Therefore the correct answer is C.

6 0
3 years ago
Why is density a derived unit?
Triss [41]
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Density is an intensive property, which means the amount of the material is irrelevant. The density of a substance is constant.

4 0
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Arte-miy333 [17]

Answer:

<em>It is a constant when the light is traveling in a vacuum.</em>

Explanation:

7 0
3 years ago
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Misha Larkins [42]

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4 0
3 years ago
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saw5 [17]
Ionic compound means a metal bonds with a nonmetal. 

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3 0
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