Why do you need blood? & what organ pushes blood through your body?

Answers

Answer 1

Answer: We need blood because it carries oxygen and helps us sustain life. The organ that pushes blood through the body is the heart.

Answer 2

Answer:

Final answer:

Blood is essential for delivering oxygen and nutrients to cells, eliminating waste products, aiding in our immune response, and carrying hormones. The heart is responsible for pushing blood through the body using muscular contractions.

Explanation:

Blood is a crucial part of our body's operating system. It has several key roles, including delivering oxygen and nutrients to cells, removing waste products, aiding in our immune response, and facilitating hormone transportation. The organ that pushes blood through your body is the heart. The heart's muscular walls contract, creating pressure and pushing blood through a network of veins and arteries in a process known as circulation.

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Some chemotherapy drugs act by attaching themselves to the growing strand of a DNA molecule, thus preventing its replication. Cells on which phase of the cell cycle would be affected by this drug?

Answers

The answer is S phase.

If drugs prevent DNA replication which occurs in the S phase. That means that the S phase will be affected by these drugs.

is when the cell is on the S phase.

S-Phase is the part of cell cycle when the DNA is replicating, occurring between G1 and G2 phase

If the replication is somehow prevented, the drugs is most likely affecting the S-Phase

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Answers

In everyday use, theory is used to mean a guess or idea about how something works. In science we would call that a hypothesis not a theory. A scientific theory is a well sustained proposal or explanation based on facts that have been repeatedly confirmed through experiments and observations. To sum up, a theory in the real world is basically a guess, and a theory in the science world is a well though out plan that has been tested and a more intact thought.

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Answers

Answer:

Although an increase in body weight can be noticed after 2 weeks, the increase is gradual and becomes apparent after 4 weeks. After 16–20 weeks of high-fat diet feeding, mouse will typically exhibit 20–30% increase in body weight when compared to chow-fed mouse (9).

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Answers

Answer:

Polymerase chain reaction is a method widely used to rapidly make millions to billions of copies of a specific DNA sample, allowing scientists to take a very small sample of DNA and amplify it to a large enough amount to study in detail.

Explanation:

that's the answer

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Answers

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Answers

(A. specialized cells that perform specific functions)

A. specialized cells that perform specific functions

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