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zhannawk [14.2K]
3 years ago
9

Special smooth muscles in the dermis that, when contracted, produce “goose bumps” are called __________.

Biology
1 answer:
frosja888 [35]3 years ago
7 0
Arrector pili is the correct answer

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Which best describes a genetic mutation to a sequence of DNA that changes the way the sequence is read?
Amanda [17]

Answer:

A frameshift mutation is a genetic mutation caused by a deletion or insertion in a DNA sequence that shifts the way the sequence is read. ... During translation, the sequence of codons is read in order from the nucleotide sequence to synthesize a chain of amino acids and form a protein.

Explanation:

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3 years ago
A scientist thinks that a certain chemical is a mutagen. She exposes plant cells to a large amount of this chemical in the labor
bekas [8.4K]

Answer:

The cells change after being exposed to the chemical, and this change is passed to the next generation of cells.

Explanation:

A mutation is any change, whether big or small, that occurs to the nucleotide sequence of a gene in a cell as caused by mistake during replication or induced by a mutation causing substance. These mutation-causing substances are called MUTAGEN.

A MUTAGEN is any substance that causes genetic mutation in an organism's cell. These changes in the nucleotide sequence can affect one or more phenotypic characteristics of the affected organism, which is also passed to offsprings because it is a genetic change.

Hence, a plant cell exposed to this mutagen will be induced to mutate.

Hence, the cells changing after being exposed to the chemical, which is also passed to the next generation of cells best provides explanation that the chemical is a MUTAGEN.

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Jesse has recently started using methamphetamines. Which of the following is he risking by taking this drug? Stroke, Blood press
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Jesse is risking blood pressure by taking methamphetamines.  

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Methamphetamine is a drug which effects the central nervous system. It gives brain a constant rush of dopamine. But abusing It puts the user to a number of side effects such as high blood pressure, fast breathing, and rapid heartbeat.

Methamphetamine can be usually consumed through a number of ways such as smoking, taking a pill, snorting, using injections in which the powder has been dissolved in alcohol or water.  

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What would a dog living now and a cat living thousands of years ago have in common
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They are/were both alive and they are both Animals

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The color of an object that humans see is actually the only color of light not __<u>refracted</u><u>.</u>________ by the object.

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