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Archy [21]
3 years ago
15

6. What is a controlled experiment? *

Biology
1 answer:
Verdich [7]3 years ago
6 0

Answer:

An experiment or trial that uses controls, usually separating the subjects into one or more control groups and experimental groups

Explanation:

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. If a person comes in contact with this same virus years later, what does our body produce to get rid of or kill the virus
borishaifa [10]

If a person comes in contact with this same virus years later, our body produces antibodies to get rid of or kill the virus

Explanation:

When a person is infected by a virus, the infected person's body develops antibodies as an immune response to act against the virus. Antibodies are produced as part of humoral immunity.

Antibodies work by neutralizing the viral activity, agglutination,  phagocytosis or by complement system.

Antibodies are protein compounds which can recognize the invading pathogens and attack them.

Antigens or viral proteins in the virus leads to the production of antibodies in the host's body.

The specific antibodies triggers innate immune response upon detecting specific viral antigens when infected and will help the body to get rid of  or kill the virus.

6 0
3 years ago
Which jobs does an animal's skeletal system do?
Oksana_A [137]

Answer:

"The Skeletal system has three very important jobs: Support, protection, and movement. Just think, if we did not have a skeletal system for support we would be just like a blob of Jell-O. The bones also protect many organs, and also the brain."

Explanation:

6 0
3 years ago
What one of the following items is a producer of pollution?
krok68 [10]

Answer:

C. factories

Explanation:

Factories release several gases and waste thata re toxic to the environment and considered pollutants.

3 0
3 years ago
Read 2 more answers
Why do cells have so many different organelles and structures?
dexar [7]

Answer:

they have many different organelles and structures because the cell needs them for survival just like the human body has many structures for us to survive and live.

3 0
2 years ago
Living things share 8 characteristics (listed in Chapter 1 of your textbook on page 19). A living thing grows, undergoes metabol
Liula [17]

Answer: A virus is a living thing and non living thing

Explanation:A virus is posses a genetically material known as DNA and it becomes a living thing when it comes in contact with a living host. A virus in a living host disrupt the genetic material thereby replicating or mutating several clones of its DNA and controlling all living activity of the host.

2. Outside the body of a host, a virus is non living because it forms crystals outside the body of a living host.

4 0
3 years ago
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