Why can’t a virus reproduce on its own?

Answers

Answer 1

Answer:

Viruses can only replicate themselves by infecting a host cell and therefore cannot reproduce on their own.

At the most basic level, viruses consist of genetic material contained within a protective protein coat called a capsid; the existence of both genetic material and protein distinguishes them from other virus-like particles such as prions and viroids.

They infect a wide variety of organisms: both eukaryotes (animals, fungi and plants) and prokaryotes (bacteria).

A virus that infects bacteria is known as a bacteriophage, often shortened to phage.

The study of viruses is known as virology, and those who study viruses are known as virologists.It has been argued extensively whether viruses are living organisms.

Most virologists consider them non-living, as they do not meet all the criteria of the generally accepted definition of life.

They are similar to obligate intracellular parasites as they lack the means for self-reproduction outside a host cell, but unlike parasites, viruses are generally not considered to be true living organisms.

A primary reason is that viruses do not possess a cell membrane or metabolise on their own - characteristics of all living organisms.

Examples of common human diseases caused by viruses include the common cold, the flu, chickenpox and cold sores.

Related Questions

Can you use evidence of evolution found in individuals of a population?

Answers

Answer:

Individual organisms don't evolve. Populations evolve.

Explanation:

Because individuals in a population vary, some in the population are better able to survive and reproduce given a particular set of environmental conditions

Which of the following statements about the light reactions of photosynthesis in chloroplasts is/are true?
A.
Chlorophyll (and other pigments) absorb light energy, which excites electrons.
B.
ATP is generated by photophosphorylation.
C.
The splitting of water molecules provides a source of electrons.
D.
None of these statements are true.
You may select zero, one, or many answers.
Submit response

Answers

Answer:

a, b, and c are true

Rama de la biología que estudia la estructura de los organismos

Answers

Answer:Anatomía. La anatomía es una de las principales ramas de la biología que permite a un individuo comprender la estructura y las partes de los organismos, incluidos los animales, los seres humanos y los organismos vivos.

Explanation:

b) What is the name of the tube that connects the liver to the alimentary canal?

Answers

Answer:

Tube is a connected liver alimentary canal

Explanation:

Tube id miob

Compare the location and size of the prepuce in the fetal pig and in the human

Answers

The prepuce is an anatomical covering for the sex organs and is an important, typical feature of the external genitalia in a pig.

Comparing the location of the prepuce - The prepuce is in the same location in fetal pigs as it is in humans.

Comparing their structures, this structure is much larger in humans than in the fetal pigs.

Learn more about the fetal pig anatomy: https://brainly.com/question/7986552

Project: Modeling the Carbon Cycle
Create a poster that models the carbon cycle.
can anyone please help me with this

Answers

Answer:

thats the poster you can create now

hope its help

The average level of glucose (also known as blood sugar in a person) is 85 mg/100 mL of blood. If the person has 5.1liters of blood, how many milligrams of glucose are present in the blood

Answers

Answer:

The average level of glucose (also known as blood sugar in a person) is 85 mg/100 mL of blood. If the person has 5.1 liters of blood, how many milligrams of glucose are present in the blood? a. 17 mgb.1.7 x 10-4 mg C. 4.3 mg d.4.3 x 103 mg e. 121 mg

What is different between the production of sperm cells and egg cells

Answers

Answer:

The most obvious difference: A sperm cell is a reproductive cell of males while egg cells are of females. Both egg cells and sperm cells depend on each other for the reproduction of a human life. Both egg cells and sperm cells undergo meiosis.

Explanation:

The most evident distinction is that a sperm cell is a male reproductive cell, whereas egg cells are female reproductive cells. Meiosis occurs in both egg and sperm cells. Sperm cells form in the epididymis, while egg cells form in the ovaries of a woman. A sperm cell is smaller than an egg cell.

Why does a cis fatty acid have a kinked shape?

Answers

Answer:

Steric hindrance in the cis orientation causes the chain to take on a more bent shape. Most natural unsaturated fatty acids are in the cis conformation. As can be seen in Figure 2.327, the cis fatty acids have a more of kinked shape, which means they do not pack together as well as the saturated or trans fatty acids

Explanation:

What is the haploid number for the Tasmanian devil?

Answers

Tasmanian devils have 14 haploid chromosomes

This is because particles are close enough that they can slide past each other, which makes liquid pourable. In a solid state, the particles of this element look like this

Answers

Please provide more details to your questions!

Define what are abiotic factors

Answers

they are non living part of an ecosystem.

abiotic factors are the non-living part of an ecosystem that shapes its environment.

for example water, light, etc.

how could knowledge of a pest organisms tolerance limits be used in pest control

Answers

Answer:

Explanation:

With the knowledge of knowing the organism's tolerance you could learn how to better kill them and get rid of them. For example for bed bugs poisons did not work but they realized extreme cold temperature did so they now freeze them.

Close breeding and line-breeding are a part of what type of straight breeding system?

A: Crossbreeding
B: Grading up
C: Inbreeding
D: Outcrossing

Answers

Close breeding and line-breeding are a part of the inbreeding system. Inbreeding refers to the cross between relatives.

Inbreeding refers to the genetic breeding system which involved the cross between relatives.

Close breeding and line-breeding are a part of the inbreeding system and these techniques involve the obtention of pure (homo-zygous) lines.

Autogamous plants show better phenotypic features when they are pure (homo-zygous) lines.

Learn more about inbreeding here:

https://brainly.com/question/3205214

The atomic mass of the most common isotope of magnesium is

Answers

Answer:

23.98504 or 24mg

Explanation:

HELP PLEASEEEEEEEEEEEEE

Answers

Answer:

steroids: catabolic

cellular respiration: catabolic

lipid breakdown: catabolic

photosynthesis: anabolic

Explanation:

Catabolic you could say is when something breaks down, "consumed, used". When its anabolic its being formed, example: photosynthesis to create energy.

Hope that helps

- Psychology PLS HELP-

Tom's directive and confrontive therapist challenges Tom's belief that he is worthless because he is not the
world's greatest Superhero. Tom's therapist is most likely:

A. an eclectic therapist

B. a psychoanalyst like Sigmund Freud

C. a cognitive therapist like Aaron Beck

D. a humanistic therapist like Carl Rogers

E. a humanistic, client-centered therapist

Answers

Tom's therapist is most likely an eclectic therapist.

What is eclectic therapy?

Eclectic therapy is a method that draws on orientation and many theoretical approaches. It is a flexible and multi-faceted treatment that allows the therapist to use the most effective methods available to address the needs of each client.

What is an example of eclectic therapy?

An example of an eclectic program is where children spend part of each day experiencing a variety of treatments, such as formal teaching using behavioral analytical techniques (ABA), sensory stimulation (brushing and flipping), down-to-earth routines, and music sessions, and free play with regular peers.

Learn more about eclectic therapy here https://brainly.com/question/27155537

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Sorry I have a slow mind... What word do weather forecasters use to describe water vapor that has gathered in a cloud?

Answers

Answer:

condensation

Explanation:

Condensation is when the water vapor becomes a cloud

please mark brainliest :)

What type of food do Decomposers eat?

Answers

my question keeps getting deleted but they basically eat things that are no longer living like no longer living plants and , animals no longer living

This is for biology, I’ve been having some trouble on it please help!

Answers

Answer:

um you have to be more clear plssssss

Question :

Using the terms and phrases provided below, complete the concept map showing the characteristics of cells.

Answer:

Di consider the above attached file as an answer to this question.

ありがとうございました!

All birds lay their eggs on land.
Which feature of birds allows the embryos in eggs to maintain homeostasis
and survive on land?
A. Hard, watertight shells
B. Specialized beaks
O C. Flexible, leathery shells
D. Insulating feathers

Answers

B just specialized beaks pls put the answer like Brainly answer

Because of the good soil
composition found in this biome, the
majority of the farmlands in the
United States are found in
A. deserts
B. temperate forests
C. grasslands

Answers

Answer:

C. Grasslands

Cells that do not have a nuclear membrane are called

Answers

Prokaryotic cells
Please mark as brainliest answer

1
Which two ways do the black-tailed jackrabbit and the kit fox interact with the
desert environment?
Select two correct answers.
A
Black-tailed Jackrabbits and Kit Foxes interact with the desert
environment by providing food for plants.
Black-tailed Jackrabbits and Kit Foxes use water and air from the
environment to survive.
B
>
с
Black-tailed Jackrabbits and Kit Foxes obtain energy from consuming
other organisms.
Black-tailed Jackrabbits and Kit Foxes consume plants but do not
need the environment for survival
D
E
Black-tailed Jackrabbits and Kit Foxes meet their needs in their
environment by eating only plants for food.

Answers

Answer:

b

Explanation:

What is the fundamental branch of Science from which Neuroscience stems, Biology, Mathematics, or Physics?

Answers

Answer:

Mathematics is the branch of science, which deals with numbers, involves calculations and mainly focuses on the study of quantity, shapes, measurements etc.

what is an example of something that keeps our genes heathy ?

Answers

Answer:

I guess I would say water

Cells use ------ to take in large molecules or other cells

Answers

Endocytosis cells use endocytosis to take in large molecules or other cells

Answer:

Active transport by endocytosis. there is your answer.

Explanation :

Phagocytosis is the process by which cells ingest large particles, including other cells, by enclosing the particles in an extension of the cell membrane and budding off a new vesicle. During pinocytosis, cells take in molecules such as water from the extracellular fluid.

In the series of words given below, which of the following words is not categorized with the others?
superstructure - supervene - superstar - Supemova - supertanker
Select the single best answer:
e
A. superstructure
B. supervene
C. superstar
D. supernova
E supertanker

Answers

Answer:

I think its supernova

Explanation:

the choices a b c and e are all something more of something that exists. Ex) Super star is a star that is Super! But a Supernova is just a Supernova. There is no nova that is Super.

I hope this helps.

Supernova is the series of words given below, which of the following words is not categorized with the others.

What is Supernova?

A star that has reached the end of its life and bursts in a bright flash of light is what is known as a supernova.

Supernovae have the ability to briefly outshine entire galaxies and emit more energy in a single second than the sun does in its entire lifetime. Additionally, they are the universe's main supplier of heavy materials. Supernovae are "the greatest explosion that occurs in space," according to NASA.

Supernovae were noted by numerous cultures before the telescope was created in the 17th century. According to NASA's records, this "guest star" was visible in the sky for eight months.

Therefore, Supernova is the series of words given below, which of the following words is not categorized with the others.

To learn more about supernova, refer to the link:

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Solar radiation can cause skin cancer in an individual. If a man with skin cancer caused by solar radiation has offspring, which of the following statements would be true? A. only the man getting skin cancer would be affected B. only the man and his male offspring would be affected C. only the man and his female offspring would be affected D. the man and all of his offspring would be affected

Answers

A. Only the man as it cannot be inherently passed on to offsprings

Mutations are not always negative. Explain why this statement is true. Provide two reasons using examples to support your answer.

Answers

2 examples -
1.) in italy, ( limone ) a unique mutation protects them from developing atherosclerosis,
2.)theres mutation in bacteria too, this mutation allows bacteria to survive in the presence of antibiotic drugs, leading to the evolution of antibiotic-resistant strains of bacteria.
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