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Vikentia [17]
4 years ago
7

How do muscles move blood through the circulatory system​

Biology
1 answer:
Andreyy894 years ago
5 0
Skeletal muscles play a key role in the movement of blood around the body. Veins embedded within a muscle are compressed during contraction of that muscle, causing an increase in blood pressure due to the presence of one-way valves within the veins.
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Sometimes genes, for no known reason, change their form in a process called spontaneous __________.
cupoosta [38]

Answer:

Mutation.

Explanation:

Mutation may be defined as the sudden heritable change in the DNA sequence of the organisms. Mutation can results in the change in the genotype and phenotype of the organisms.

Two main types of mutation are spontaneous mutation and induced mutation. Induced mutation occurs intentionally with the help of the mutagens. Spontaneous mutation is the natural mutation that occurs for the no known reason.

Thus, the answer is spontaneous mutation.

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4 years ago
Which form of cnidarian has the organism floating in the ocean column with their tentacles down
kati45 [8]
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Dahasolnce [82]

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Explanation:

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3 years ago
Which of the following is one way that mutations happen ?
Elanso [62]
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7 0
3 years ago
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enyata [817]

Answer:

X could be an Arecaceae

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Explanation:

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