Biology, 29.06.2019 21:00 hany90

Ais an agent that can cause infections and diseases.

Answers: 2

Show answers

Answers

Answer from: lazypotato71

A virus is an agent that causes infections and diseases.

Further Explanation

Viruses are microscopic parasites that infect cells of biological organisms. Viruses are obligate parasites, this is because viruses can only reproduce in living material by invading and utilizing the cells of living things because viruses do not have cellular equipment to reproduce themselves.

The term virus usually refers to particles that infect eukaryote cells (multicellular organisms and many types of single-cell organisms), while the term bacteriophage or phage is used for types that attack types of prokaryotic cells (bacteria and other organisms that do not cell nucleated).

The virus has been infecting since the days before Christ, this is evidenced by the existence of several discoveries, namely reports of virus infections in hieroglyphics in Memphis, the capital of ancient Egypt (1400 BC) which shows the existence of poliomyelitis. In addition, King Pharaoh Ramses V died in 1196 BC and is believed to have died of the smallpox virus.

In 1880, Louis Pasteur and Robert Koch put forward a "germ theory" namely that microorganisms are the cause of disease. At that time also the famous Koch Postulate which is very well known today, namely:

A disease agent must be present in every case of the disease The agent must be isolated from the host and can be grown in vitro When the muri agent culture is inoculated into susceptible healthy host cells, it can cause disease The same agent can be taken and re-isolated from the infected host Various kinds of viral infections Acute infections are infections that last for a short time but can also be fatal. Chronic infection is a prolonged viral infection so there is a risk of symptoms of the disease coming back.

Learn More

Viruses link

The infection by virus link

Details

Class: Middle School

Subject: Biology

Keywords: viruses, disease, infection

Answer from: mylaaaa79

pathogen

Explanation:

In biology, a pathogen (Greek: πάθος pathos "suffering", "passion" and -γενής -genēs "producer of") in the oldest and broadest sense, is anything that can produce disease. A pathogen may also be referred to as an infectious agent, or simply a germ.

Answer from: Quest

its 42

i say its d?

Answer from: Quest

Cis correct i think

Another question on Biology

Biology, 22.06.2019 04:00

Of your good in bio kusing a series of preliminary observations; pstate a problem developed from these observations, formulate a hypothesis, design an experiment to test the hypothesis

Answers: 3

Answer

Biology, 22.06.2019 08:00

Vaccines are weakened forms of disease causing microorganisms, which are given to patients to prevent disease. after the vaccine is administered, the immune system responds by creating a(n) to recognize the a.) antibody, antibiotic b.) antigen, antibody c.)antibiotic, antibody d.)antibody, antigen

Answers: 1

Answer

Biology, 22.06.2019 08:30

Both male and female gametes are created during the process of meiosis. the formation of male gametes is called spermatogenesis. after telophase il of spermatogenesis, there would be are all genetically male gametes created that

Answers: 2

Answer

Biology, 22.06.2019 14:00

Some substances but not other can cross the (blank) membrane of a cell

Answers: 2

Answer

You know the right answer?

Ais an agent that can cause infections and diseases....

Questions