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dlinn [17]
3 years ago
13

Viral genomes may comprise Choose one: A. double-stranded RNA. B. double-stranded DNA. C. double or single-stranded DNA or doubl

e or single-stranded RNA. D. single-stranded DNA.
Biology
1 answer:
wlad13 [49]3 years ago
6 0

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.

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Answer: Representative of his cognitive development.

The preschool period refers to the years the age between 3 and 5 years considered as the preschool period. In this period Physical development occurs at slower pace than cognitive and psychosocial development. The maturation of brain of preschoolers continues. They demonstrate their ability to think more complexly by classifying objects by questioning. Children become aware of cause-and-effect relationships.

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3 years ago
Sam started his morning walk from the location indicated by the point below.
mel-nik [20]

Answer:

(-1,-3) on the coordinate grid.

Explanation:

The location from where Sam started his morning walk is 3 units to the left and 2 units up from the origin. This location is indicated by the point (-3,2).

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So, find the point that is 5 units to the south of point (-3,2). Distances north and south on the map represent a change in the y-coordinate. Moving 5 units to the south on the map from point (-3,2) places the new location at point (-3,-3).

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So, Sam met Ethan at the location indicated by point (-1,-3) on the coordinate grid.

6 0
3 years ago
Read 2 more answers
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Arisa [49]
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7 0
2 years ago
Manny has contracted a virus that is destroying his body's immune system. manny most likely has:
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HIV? It destroys the immune cells called CD4 T cells.
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B

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