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pashok25 [27]
3 years ago
5

What must a cell do before it can divide to a new cell

Advanced Placement (AP)
2 answers:
kolezko [41]3 years ago
7 0
Once it has copied all its DNA a cell normally divides into two new cells this process is called mitosis
taurus [48]3 years ago
4 0
<span>Once it has copied all its DNA, a cell normally divides into two new cells. This process is called mitosis. Each new cell gets a complete copy of all the DNA, bundled up as 46 chromosomes. Cells that are making egg or sperm cells must divide in a different way.</span>
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3 years ago
Light waves are transmitted across the ________ and enter the eye through the ________.
alexdok [17]

Light waves are transmitted across the cornea and enter the eyes through the pupil.

<h3>FURTHER EXPLANATION</h3>

The eyes and the brain are important in helping people see. Light passes through the eyes and this light gets transformed into electrical signals which are sent to the brain that helps make sense of the object that is seen.

<h3 /><h3>How People See</h3>
  1. Light is incident on an object (or strikes an object). Some of it get absorbed, some are reflected into a human's eye.
  2. Light that bounces off the object is transmitted across the cornea,  the transparent outer layer of the eye. It refracts the light and makes things look sharp and clear.
  3. Then the light enters the pupil which is the opening in the eye controlled by the iris or the colored part of the eye. The iris changes the size of the pupil and controls the amount of light that enters the eye. When there is bright light, the pupil becomes smaller. In dim light, the opposite happens and the pupil becomes bigger.
  4. At the back of the pupil is the lens which again helps focus the light. Its shape changes depending on the distances of the objects that is being looked at.
  5. The light rays are focused by the lens so that they all converge in the retina which is at the back of the eye. The retina has many specialized cells which are sensitive to light. These cells transform light energy into electrical signals or nerve impulses which form a rough inverted image of the object the person is looking at.
  6. The electrical signals travel to the brain through the optic nerve. The brain turns the image upright and adds more detail to the vision.
<h3 /><h3>LEARN MORE</h3>
  • Virtual and Real Image brainly.com/question/916093
  • Refraction brainly.com/question/8533315
  • Lens brainly.com/question/2919483

Keywords: eye, vision, cornea, pupil

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3 years ago
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What is one power of the government that is exclusively a power of the states?
Tamiku [17]

Answer:

government have the power to tax, make and enforce laws, charter banks, and borrow money.

Explanation:

If you need an explanation for each brack well

The legislative branch drafts proposed laws, confirms or rejects presidential nominations for heads of federal agencies, federal judges, and the Supreme Court, and has the authority to declare war.

The executive branch carries out and enforces laws. It includes the president, vice president, the Cabinet, executive departments, independent agencies, and other boards, commissions, and committees.

The judicial branch of the U.S. government is the system of federal courts and judges that interprets laws made by the legislative branch and enforced by the executive branch. At the top of the judicial branch are the nine justices of the Supreme Court, the highest court in the United States.

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Which item is the best example of propaganda?
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Answer:

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