Why are antibiotics ineffective against viruses?

Answers

Answer 1

Answer:

antibiotics are useless against viral infections this is because viruses are so simple that they use their host cells to perform their activities for them. so antiviral drugs work differently to antibiotics by interfering with the viral enzymes instead


Related Questions

What protects the living organisms on the earth from extreme heat and extreme cold?

Answers

Earth atmosphere is the answer

What are fungus like protists

Answers

Answer:

Fungus-like protists are protists that absorb their food from dead organic matter. They are grouped into 2 groups, slime molds and water molds.

Bio 111 Unit 1 Extra Credit
Crossword

Answers

This is what I see here,.

The process of photosynthesis ultimately converts light energy into -

Answers

Glucose is the answer.

A Father and Mother are both carriers of the autosomal recessive condition known as albinism. They have one child, and a second child two years later. Their first child was not albino. Knowing this, you can say that the probability of the second child having albinism is Note - Albinism is the result of a lack of pigmentation in skin and other cells.​

Answers

answer: there is a 50% probability of the 2nd child having albinism.

since the mother and father are both carriers then they would both have Aa. meaning there would be a 50% chance of the child being normal (AA) and a 50% chance of the child having albinism (aa)

Both the mother and father would have Aa because they are both carriers. i.e., there would be a 50% probability that the child would be albinized (AA) and a 50% chance that the child would be normal (aa).

What is albinism?

Albinism refers to a collection of extremely uncommon genetic illnesses that are characterized by the absence of melanin at birth in either an animal or a plant.

People who have albinism either have a significantly diminished amount of melanin or none at all. Both their coloring and their eyesight may be impacted as a result of this. Albinism is characterized by extremely light or very light blonde hair, while some individuals with the condition have brown or ginger hair. The precise color is determined by the amount of melanin that is produced by the body.

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A red blood cell leaving the left ventricle of the heart would take which pathway to reach the facial artery?

Answers

Answer:

Red blood cell arrives from the inferior vena cava into right atrium before it passes through the tricuspid valve into right ventricle. It then passes through the pulmonary valve into pulmonary artery before travelling through the lungs and back into the heart, this time the left atrium via the pulmonary vein.

Explanation:

hope this helps

The pathway of a red blood cell that leaves the left ventricle of the heart to reach the facial artery would be: Arch of Aorta > Brachiocephalic Trunk > Right Common Carotid Artery > Right External Carotid Artery > Right Facial Artery

The arch of the aorta can be considered as the peak of the ascending aorta.

The brachiocephalic trunk refers to the second branch to arise from the aorta.

The right common carotid artery arises as a branch of the brachiocephalic trunk of the aortic arch.

The facial artery is a branch of the external carotid artery that supplies blood to the muscles and skin of the face.

In conclusion, the pathway of a red blood cell that leaves the left ventricle of the heart to reach the facial artery would be: Arch of Aorta > Brachiocephalic Trunk > Right Common Carotid Artery > Right External Carotid Artery > Right Facial Artery.

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Which of these is the beat example of a positive feedback loop in earth’s climate system

Answers

Answer:  B.  as climate warms, CO2 increases because plants remove less of it

Explanation:

Which clastic sedimentary rock is made of the smallest grains?

1) Conglomerate
2) sandstone
3) siltstone
4) shale

Answers

Answer:

Shale

Shale has the smallest grain size. Shale is made mostly of clay-sized particles and hardened mud.

Explanation:

thank me later

The middle portion of unspecialized mesoderm from which cartilage, bone, and blood develop is called . The mature cells that live in cartilage and maintain the matrix around them are . is a type of cartilage with a net of collagen fibers to help resist compression and tension. Any tissues that exist in layers and form linings or coverings fall into the category of . is the type of connective tissue that forms a structural net to support other cells. Submit Request Answer Provide Feedback Next

Answers

Answer:

The correct terms or tissues are :

mesenchyme

chondrocytes

fibrocartilage

stratified epithelia

reticular connective tissue

Explanation:

1. Mesenchyme is comprised of loose cells embedded in a mesh of proteins and fluid that makes the middle portion of the unspecialized mesoderm from which cartilage, bone, and blood develop.

2. The mature cells that live in cartilage and maintain the matrix around them are chondrocytes.

3. Fibrocartilage is a type of cartilage with a net of collagen fibers to help resist compression and tension.

4. Any tissues that exist in layers and form linings or coverings fall into the category of stratified epithelia.

5.. Reticular connective tissue is the type of connective tissue that is a supportive structural network fibre to support other cells.

True or false: the body is made up of only four systems that all work together.

Answers

Answer:

false

Explanation:

There are ten major organ systems in the body, each of which plays a different role in helping the body work.

what level of biological organization is illustrated by the image? click the correct box​

Answers

Answer: Ecosystem

Explanation: This image shows multiple species interacting with their environment: human and rabbit within waterfall and tree.

The level of biological organization that is illustrated by the image is called Ecosystem.

An ecosystem is defined as a self supportiung unit that is made up of a living part (biotic factors) like plants and animals; and non-living part (abiotic factors) like water, soil, air.

In an ecosystem, the biotic community includes population of:

Food producers: That is the autotrophs like the green plants which are seen in the attached diagram.

Food consumers : That is the heterotrophs such as animals and human beings.

The non-living part of an ecosystem is its abiotic component. this consist of:

Abiotic resources: These are what organisms need to stay alive. they include a source of energy (sunlight as seen in the diagram) and inorganic nutrients ( carbon dioxide, water).

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which method of evolution best defines the figure:


A. fossilization

B. non-random mating

C. natural selection

D. gene flow

Answers

Answer:

C) Natural Selection

Explanation:

Environmental designers design structures to match the environment.

Please select the best answer from the choices provided

от
OF

Answers

Answer:

True

Explanation:

Environmental designers are professionals who try to limit the effects of the building process on the surrounding environment when designing programs, plans, policies, buildings, commercial products, etc. They are capable of simultaneously providing ecological sustainability and pleasant human spaces. For that purpose, environmental designers can build structures by using environmentally friendly materials. Some of the most important areas of research that include the job of an environmental designer include ecology, sustainability, architecture, urban planning, construction, environmental impact, environmental psychology, etc.

Answer:

true

Explanation:

edge 2021

Explain what happens to an animal cell when it is removed from the organism and placed into concentrated sucrose solution

Answers

They shrink and pull away from the cell wall. The cell becomes flaccid . It is becoming plasmolysed . In a very concentrated solution, the cell undergoes full plasmolysis as the cells lose more water.

Why do scientists consider vestigial structures as an evidence for evolution

Answers

Answer:

it so diffcult pls another

help will give brainliest need help by 9pt. thanks

Answers

Answer:

Potassium (k)

Explanation:

Potassium is so reactiev that it wont even be found naturally in nature, it legit racts with almost anything and doesn't take almost anything at all to start a reaction. COmpared to the other Potassium is easily number 1

what is it called when a seismic wave bends as it passed from liquid to solid

Answers

Answer:

Refraction

Explanation:

The bending of seismic waves is called refraction. The fact that S-waves do not travel through the outer core suggests that the latter is liquid.

The diagram below shows an energy pyramid for various trophic levels in an ecosystem. According to this pyramid, which trophic level has the LEAST amount of energy?
1. A
2.B
3.C
4.D​

Answers

Answer:

A

Explanation:

Ribosomes are the site where ____ are produced.
Amino acids are coded for by triplet bases in RNA called ____.

Answers

Answer:

proteins and codons

Explanation:

Protein misfolding causes ____.​
a.​arthritis
b.Creutzfeldt-Jakob disease​
c.​schizophrenia
d.​immunodepression
e.​tuberculosis

Answers

Answer:

b

Explanation:

Explanation:

everything can be found in the picture

How is serving size important to good nutrition and health

Answers

Answer:

it depends on the amount of each nutrition to make a balance meal

Serving size is the first piece of information listed on the label. This is the amount of food that is typically eaten at one time. The size is in a basic household measurement, such as pieces, cups, or ounces. For example, a serving may be 7 potato chips or 1 cup of cereal.

Use the Lotka-Volterra competition model to determine whether the two species of Paramecium will coexist or drive each other to extinction in the scenario below. In these examples, N1 = N2, and K1 = K2 = 50.

Scenario 1: Determine the outcome of the competitive interaction between P. caudatum and P. aurelia if K1 = K2 = 50, α = 0.3, and β = 0.6.
Scenario 2: Determine the outcome of the competitive interaction between P. caudatum and P. aurelia if K1 = K2 = 50, α = 1.5, and β = 0.6.
Scenario 3: Determine the outcome of the competitive interaction between P. caudatum and P. aurelia if K1 = K2 = 50, α = 0.9, and β = 1.2.

Answers

Answer:they drive each other to extinction

Explanation:

What is natural selection and how does it drive the evolution of a virus?

Answers

Viruses undergo evolution and natural selection, just like cell-based life, and most of them evolve rapidly. When two viruses infect a cell at the same time, they may swap genetic material to make new, mixed viruses with unique properties. For example, flu strains can arise this way.

Tiny structures inside of cells such as ribosomes or chloroplasts that have specialized roles are called

Answers

Answer:

Organelles

Explanation:

These structures are found in the cytoplasm of eukaryotic cells and are enclosed with a membrane.


QUESTION 2
Which of the following substances is not carried in the mem or in the phloem?
Sugar
Water
mu o
Carbon dioxide as
Dissolved minerals​

Answers

Answer:

Carbon dioxide

Explanation:

Xylem and phloem are the two conducting tissues of a vascular plants. They are referred to as vascular bundles. Xylem and phloem are responsible for conducting certain substances from one part of the plant to another.

The xylem is responsible for conducting WATER AND DISSOLVED MINERALS from the root of the plants to other parts e.g leaves, stem, flowers etc. while the phloem conducts sugar (product of photosynthesis) e.g glucose from the leaves of the plant to other parts including the stem, root etc.

According to this question, xylem or phloem does not conduct or carry gaseous substances like carbon dioxide (CO2).

How much of the world's population is infected with the tuberculosis bacterium?
A. 1/10
B. 1/3
C. 1/2
D. 1/5
E. 1/20

Answers

Answer:

23% im pretty sure that is the answer if i remember right

Compare and contrast the advantages and disadvantages of wind power and geothermal power

Answers

Answer:

An Overview of Geothermal Pros and Cons:

Pros Cons

This energy source is more environmentally friendly than conventional fuel sources.  The largest single disadvantage of geothermal energy is that it is location specific.

A source of renewable energy.  Gases are released into the atmosphere during digging.

The number of exploitable geothermal resources will increase with ongoing research and development in the industry.  Geothermal energy runs the risk of triggering earthquakes.

A sustainable source of energy as its always available unlike wind and solar.  Expensive resource to tap into, with high upfront costs ranging from around $2-$7 million for a plant with a 1 megawatt capacity.

A reliable source as its easier to predict the power output from a geothermal plant with a high degree of accuracy.  Energy fluid needs to be pumped back into the underground reservoirs faster than it is depleted. Management is required to maintain sustainability.

No fuel is required.  

Increase in exploration meaning that new technologies are being created to improve the energy process.  

Pollution levels are much lower compared to fossil fuels.

Explanation:

Type of cell division that is occurring in the cell in the diagram​

Answers

Answer:

There is no diagram but the cell division happens in stages. PMAT is a way to remember them. prophase, metaphase, anaphase, and telophase. This all takes place in Mitosis. Mitosis is the division of cells to make more *identical* cells, (skin cells, stomach cells). But Miosis is the making and division of sperm cells *not Identical* (sperm, and egg cells) are made in this phase.

Which is NOT an abiotic factor?



temperature


prey


atmosphere


sunlight

Answers

there all abiotic I’m sorry this question doesn’t make sense
The correct answer is B. Prey
Temperature, atmosphere, and sunlight are all abiotic (non-living) while prey is biotic because it consists of animals

How do vaccines help the immune system fight against pathogens , like viruses and bacteria ?

Answers

Answer:

It introduces the body to a virus strand(s) to initiate internal resistance, which is created after a variety of metabolical processes. The idea is that the body would develop immunity to the virus without actually "getting" the virus.

Explanation:

Answer:

When we are exposed to antigens the body sends an immune response to prevent any infection or disease. Vaccines contain the same parts of antigens that can cause diseases, though they are weakened so that they don't actually cause disease, then they trigger the immune system to produce antibodies, which then help to fight against pathogens.

Explanation:

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