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serious [3.7K]
3 years ago
6

What causes the different sessions on earth

Biology
1 answer:
const2013 [10]3 years ago
5 0
Earth has seasons because our planet's axis of rotation is tilted at an angle of 23.5 degrees relative to our orbital plane the plane of Earth's orbit around the sun. The tilt in the axis of the Earth is called its obliquity.
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cancerous growths are clonal in origin because cancer cells . multiple choice question. can invade healthy tissues originate fro
rodikova [14]

Cancerous growths are clonal in origin because of cancer cells originate from a single cell that has accumulated genetic changes during cell division.

The human body contains several billion cells. Cells are the teeny, tiny building blocks of our tissues and organs. Every one of us was once a single cell. That cell divided into two new cells after internal replication.

Cells become abnormal when the DNA, which holds the instructions needed for cells to operate, is damaged. The cells they make after that will not be similar to healthy ones. Along with having a variety of appearances, they might also possess different traits. The medical word for this kind of abnormal cell proliferation in body tissue, including skin, is dysplasia. As long as there aren't many abnormal cells and our immune system controls them, we won't get sick from them.

Sometimes these cells can vanish on their own. Only when these cells continue to change and start to divide erratically, leading to lumps or growths, does one of the more than 200 diseases recognized as cancer become apparent. These kinds of growths are tumors.

The complete question is:

Cancerous growths are clonal in origin because of cancer cells __________.

multiple choice questions.

(A). can invade healthy tissues originating from a single cell that has accumulated genetic changes during cell division

(B) can migrate to other areas of the body and form secondary tumors at the new sites

(C) can form a tumor that is localized only at one site

To learn more about cancer please click on the given link: brainly.com/question/14336972

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3 0
1 year ago
Explain why the nitrogen bases are considered the genetic code. Why are they so important?
MAXImum [283]

Answer: mountain roads are winding and gently sloping in order to reduce the effect of steepness which causes more downward gravitational pull to the vehicle on it . A steeper sloped road would slow the car down to a greater extent that an gently sloping one.

Explanation:

8 0
3 years ago
What therapeutic effect does the nurse expect to identify when mannitol is administered parenterally to a client with cerebral e
DIA [1.3K]
<span>The primary desired therapeutic effect of mannitol is the reduction of intracranial pressure. This pressure, most likely caused by swelling on the brain, is generally caused by head traumas and can be life threatening. The administration of mannitol reduces this swelling thus decreasing the cranial pressure.</span>
4 0
3 years ago
Diphtheria causing agent mode of Transmission, incubation period,symptoms and preventive measures and cure ​
Sedbober [7]

Diptheria is a serious infection mainly caused by a specific type of bacteria. This diseases is associated to different symptoms.

<h3>What is the causing agent?</h3>

This disease is caused by Corynebacterium diphtheriae, which is a specific type of bacteria. Moreover, this bacteria produces toxins and this is the cause of the symptoms.

<h3>How is it transmitted?</h3>

This can be transmitted through saliva droplets from one infected person to a healthy person. Usually, symptoms appear within 5 days after getting the bacteria.

<h3>What are the symptoms?</h3>

Although this disease has many symptoms, the most important ones are sore throat and gray lining on the throat and nearby areas.

<h3>How to prevent it or treat it?</h3>

Antibiotics and antitoxins are often used, but the best is to prevent it through vaccination.

Learn more about diphtheria in: brainly.com/question/13061650

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7 0
2 years ago
Read 2 more answers
One of the primary advantages of cell culture is the ability to isolate a single type of cell from a multicellular organism. How
weqwewe [10]

Answer:

Scientists know that any response during an experiment is associated only with that cell type.

Explanation:

A cell culture is a group of cells that develops from a single original cell. Biologists can use cell cultures to test cell responses under controlled environmental conditions in order to study interactions between cells, and different processes occurs in it. Cell culture is one of the major tools used in the study of physiology and effect of toxic substances on the cells.

5 0
3 years ago
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