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shusha [124]
3 years ago
5

Viruses are made up of cells​

Biology
1 answer:
Natali5045456 [20]3 years ago
4 0
What is a virus ?

Viruses are not made out of cells. A single virus particle is known as a virion, and is made up of a set of genes bundled within a protective protein shell called a capsid. Certain virus strains will have an extra membrane (lipid bilayer) surrounding it called an envelope.
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The autonomic nervous system controls
GuDViN [60]

The answer will be :

B. Heart Rate

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2 years ago
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Given that the commercial strawberry is an octoploid organism (8n), how many copies of each gene is present in one of the somati
DanielleElmas [232]

Answer:

1. 8 copies of each gene in somatic cells

2. 4 copies of each gene in gametes

Explanation:

According to the question, strawberry is an octoploid organism (8n). This means that it contains 8 sets of chromosomes in its genome. If it contains 8 copies of each chromosome, then it also contains 8 copies of each gene in its body or somatic cell (4 copies from each parent).

However, it will produce gametes or reproductive cells via meiosis. Meiosis is a kind of cell division that reduces the chromosomal number by half. Hence, an octoploid strawberry (8n) with 8 copies of genes will undergo meiosis to produce gametes that have 4 copies of each chromosome and hence, four copies of each gene i.e. 4n (tetraploid).

8 0
4 years ago
The closest star to our solar system is the _____.<br><br> Alpha Centauri<br> Sun<br> Northern Star
Illusion [34]

Answer:

Explanation:

true and keep it up

6 0
3 years ago
Which region contains structures that receive sympathetic innervation from the middle and inferior cervical ganglia
tigry1 [53]

The thoracic region receive sympathetic innervation from the middle and inferior cervical ganglia.

The cervical sympathetic trunk is the portion of the sympathetic trunk located to the left and right of the cervical spine, this trunk extends from the entrance of the thoracic wall to the base of the skull.

  • It is made up of 3 ganglia: the superior ganglia made up of the first 3 cervical ganglia; the middle ganglia made up of the 4th cervical ganglion and the inferior ganglia made up of the last 4 ganglia.

  • These ganglia are responsible for the sympathetic innervation of the upper extremities, the viscera of the thoracic cavity and that of the organs of the abdominal cavity.

Therefore, we can conclude that the thoracic sympathetic chain is made up of ganglia that innervate the thoracic region.

Learn more about the sympathetic innervation here: brainly.com/question/25711534

6 0
3 years ago
Round depressions on the moon’s surface are called _____. highlands craters maria meteorites
Nonamiya [84]

Answer:

Craters

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3 years ago
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