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Luda [366]
3 years ago
8

A ____ virus mutates with every infection, thus making them difficult to locate

Biology
1 answer:
ohaa [14]3 years ago
8 0

Polymorphic. Polymorphisms refer to spasmodic genetic variation within the same species of an organism resulting in varying forms of the species. Polymorphic viruses, mutate at faster rates hence the virus population is subject to high rates of turnovers. The high divergence of various species, such as influenza, is as a result of 0.01 mutations per nucleotide site per year.   





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What evidence supports Hess's theory of seafloor spreading? Check all that apply.
Zarrin [17]

The direction iron in ocean rocks points

The new crust, formed at constructive/divergent boundary (regarding tectonic plate movement), has band-like patterns that orient in different directions (in alignment with earth's magnetic fields) and visible on the surface. This shows that it is newly made crust made from new magma.

Explanation:

These bands are firmed when the iron minerals in magma orient themselves with the earth's magnetic field before the magma cols into rock and lock the minerals permanently in position. This magma upwells from the mantle to fill the void made when the tectonic plates are moving away from each other.

The earth's magnetic field on the other hand is dynamic. Its angle increases gradually from the true north or south and then flips orientation over several hundred years. The iron minerals therefore will align differently depending on the orientation of the earths magnetic field at the time. This is why the new crust has band-like features visible on its surface.

Learn More:

For more on seafloor spreading check out;

brainly.com/question/3616698

#LearnWithBrainly

6 0
3 years ago
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Help please it’s biology!!!
UkoKoshka [18]

Answer:

The answer to your question is below

Explanation:

1.- Nucleus                                   B

2.- Nucleolus                               A

3.- Nuclear membrane               E

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5.- Smooth endoplasmic reticulum K

6.- Golgi apparatus                          C

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8.- Chloroplast                                  H

9.- Central vacuole                           J

10.- Ribosomes                                 L

11.- Cell wall                                       F

12.- Cell membrane                          D

13.- Microfilaments                           G

3 0
3 years ago
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Where does a 'thought' go when forgotten
forsale [732]

Answer:

It dont go anywhere because it never existed

Explanation:

its gone its gone

4 0
3 years ago
Helpp.............................
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Answer:

The answer is A

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It is logical because the balloon lets the student see how much gas is released in the reaction. the balloon inflates with invisible air the student will normally not see.

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What do all the acids have in common?
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Answer:

Both acids and bases are electrolytes which means that they're good conductors of electricity. Acids and bases both produce ions in water solution. Acids release hydrogen ions (H+) whereas Bases release hydroxide ions (OH-). The process of mixing acid or a base in water is an exothermic one.

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