why doesn't antibiotics work on coronavirus

Answer:

2) the amount of lead used in the experiment killed the bacteria being tested

Explanation:

The bacterial colonies that women cultivate do not develop in media with these dimensions of lead.

It does not influence the number of hours or the temperature because if a group could proliferate and had the time necessary to develop the rest, it should also do so.

That is why the study should be repeated with lower lead identifications and be able to verify specifically if the hypothesis raised is correct: This group of bacteria does not grow in leaded media, either because lead has a bactericidal or bacteriostatic effect on these colonies.

The cell membrane, also called the plasma membrane, is found in all cells and separates the interior of the cell from the outside environment. The cell membrane consists of a lipid bilayer that is semipermeable. The cell membrane regulates the transport of materials entering and exiting the cell.

Explanation:

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If an individual is infected by two different antigens at the same time:

Antigens are molecules or substances that can elicit an immune response in the body by activating the production of antibodies or immune cells, such as T-cells.

Antigens can be found on the surface of cells, viruses, bacteria, fungi, parasites, or other foreign substances that enter the body.

When an individual is infected by two different antigens at the same time, each antigen will stimulate the activation of a different B-cell, leading to the production of two different antibodies. The immune system will then mount a response against both antigens simultaneously, utilizing different antibodies to bind and neutralize each one.

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Freshwater and marine regions make up the aquatic biome. The concentration of salt in freshwater areas like lakes and rivers is low. Salt concentrations are higher in marine areas like oceans and estuaries. They are arranged in descending order of size organism, population, community, and ecosystem.

The biological progressive aquatic system alludes to the collaboration of living beings with their current circumstance and prompts the development of a gathering of creatures. It is gathered into four levels: individual, populace, local area, and biological ecosystem level.

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The nuclei of prokaryotes are not membrane-enclosed. As a result, transcription, translation, and mRNA degradation can all take place at the same time.

The simultaneous occurrence of numerous transcription and translation activities on the same DNA template can quickly increase the intracellular level of a bacterial protein.

Prokaryotic transcription frequently involves many genes and results in polycistronic mRNAs that designate multiple proteins.

In prokaryotes, RNA polymerase is recruited by a promoter sequence on the DNA template that consists of two consensus sequences. A pace of 40 nucleotides per second is used in the elongation process to create mRNA in the 5′ to 3′ direction.

The mRNA is released at termination, which can happen either when rho proteins engage or when an mRNA hairpin forms.

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Answer:

1+1=2

or 11

idk

Explanation:

Answer:

2 lol

Explanation:

you have one apple and you add another now you have 2

Answer:

We can determine if the solution is acidic or basic by using the pH scale. If the pH level fall from 0-6 (lower than 7), it is acidic. On the other hand if the solution fall from the scale higher than 7, it is basic. The pH level 7 means neutral. It is not acidic nor basic.

Answer:

Seismic waves from one earthquake can be recorded at many points on earths surface

Explanation:

Answer:

the number of electrons shared

Answer:

c.triglycerides and proteins

The theory that explains this scenario is the tragedy of the commons theory.

It is an economic theory that explains how individual gains create a general problem in society at large.

When individuals pursue personal gains even at the expense of creating a general problem in society, it results in the tragedy of the common.

Indiscriminate dumping of garbage in the ocean by countries results in a general problem that affects the entire world vis a vis the collapse of many fishing industries.

Fishes represent a source of protein for man all over the world.

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A. Considering table 1, the following procedure would work the best for communities 1 and 2 at 10°C:

Community 1: Method A because it is significantly less expensive than Method B and removes pollution more quickly than Method C.

Community 2: Method B because it preserves the lives of the local endangered species and removes contaminants more quickly than the other ways.

B. The approach that would work best for communities 1 and 2 at 20°C using table 1 is:

Community 1: Method C since it is less expensive and removes pollution more quickly.

Community 2: Process A since it removes pollution the fastest of the available options.

C. For communities 1 and 2, the technique and concentration that would work best are:

Community 1: Using Method A at 100 ppm is less expensive and less harmful to the environment.

Community 2: Compared to the other techniques, Method B at 200 ppm cleans up the contamination the fastest and with the least amount of environmental harm.

Polyaromatic hydrocarbons, heavy metals, pesticides, organic solvents, inorganic solvents, and other pollutants are among the most prevalent environmental contaminants. Accidental discharge of these toxins into the environment causes the emergence of new diseases that affect human health as well as population deaths in large numbers.

Radon and biological agents such as molds, certain infectious agents such as bacteria or viruses, and dust mites also contaminate the environment.

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Answer:

the soil matter formed by decade organic matter is called humus.

The stages of bee development are egg, larva, pupa, and adult. Eggs hatch into larvae, which then transform into pupae. Finally, adult bees emerge and undergo further maturation.

The stages of bee development are:

1. Egg: The bee life cycle begins when the queen bee lays an egg in a honeycomb cell.

2. Larva: The egg hatches into a larva, which is a legless, grub-like creature. The larva is fed a special diet called royal jelly, which stimulates its growth.

3. Pupa: The larva undergoes metamorphosis and transforms into a pupa. Inside the sealed cell, the pupa undergoes various changes, developing into an adult bee.

4. Adult Bee: After completing the pupal stage, the fully developed adult bee emerges from the cell. The bee then undergoes further maturation, such as its exoskeleton hardening, wings expanding, and adult coloration appearing.

It's important to note that there are three castes of bees: queen, worker, and drone. The development process for each caste is similar, but the diet and size of the cells they are raised in differ, leading to their distinct roles within the colony.

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When salt is mixed with fluid, it dissolves because the covalent connections in water were weaker compared to the ions interactions in salt molecules.

The correct answer is :A.

This is owing partially to the fewer charges that exist for the electrons ion chloride of sodium, Na+ or Cl-, compared to the ions in carbonate of soda, Ca2+ and CO32-. The higher the electrical charges on the ions, the greater their electrostatic attraction to each other, therefore therefore the more difficult it is for liquid to separate them.

As a result, when NaCl dissolves in water, the element sodium becomes dehydrated. As a result, the proper answer to this question is D, which is hydrated. Nota bene: In the field of chemistry salt is defined as an ionic form that interacts with cations and anions.

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Answer:

dogs

Explanation:

A catalyst speeds a reaction because it reduced the transition energy and in turn lowers the activation energy. Therefore taking this into consideration we can proceed to analyze each available option.

a. reducing the overall temperature. This is not correct as the temperature does not depend on the catalyst.

b. destabilizing bonds in the substrate. This is not correct as this depends on the reaction.

c. changing the order of amino acids. This is not correct as amino acids have a specific order in proteins and are built by ribosomes.

d. adding energy to the substrate. This is correct, more than adding energy facilitates the process due to a reduction in the transition energy.

e. all of the above. This is not correct as many of them are incorrect too.

Answer:

I will anwer the question.

Explanation:

Pasture Intensification. ...

Rotational Grazing. ...

Concentrated Animal Feeding Operations (CAFOs) ...

Crop Irrigation. ...

Genetically Modified Organism (GMO) Seeds. ...

Use of Agrochemicals. ...

Livestock. ...

Aquaculture.

Answer:

Through the process of natural selection, sea urchins have developed spines that serve as a defense mechanism against predators and a means of anchoring themselves in turbulent waters. This adaptation allows them to better survive in their environment, with individuals possessing longer or stronger spines being more likely to pass on their genes to the next generation. As a result, the population of sea urchins gradually becomes better adapted to their surroundings, demonstrating the power of natural selection in shaping the evolution of species.

Answer:

A phylogenetic tree, also known as a phylogeny, is a diagram that depicts the lines of evolutionary descent of different species, organisms, or genes from a common ancestor.

Answer:

Vagus nerve is the 10th cranial nerve. It is long start from brain and distributed over head, thorax and abdomen.

Explanation:

1.   In the salivary gland the secretory and vasodilator effect on afferent nerve is mediated mainly by parasympathetic reflex which is given by vagus nerve.

2.   Pyloric sphincter is the part present between the stomach and small intestine which regulate the flow of food particles from stomach to the intestine. Vagus nerve control the activities of pyloric sphincter. Vagus nerve help the pyloric sphincter to relax.

3.  Efferent nerves of vagus nerve help the gall bladder to contract. Vagus nerve is stimulating the gastric tract to contract. So the vagus nerve stimulation promotpromotprthe production of CCK hormone and it will lead to the contraction and secretion of hormones from the gallbladder. Those contractions will help the gallbladder to empty the hormones from gallbladder.

4.  The efferent nerves of vagus nerves act on the smooth muscles of duodenal papila. As above says it lead to the contraction of smooth muscles and also promote the production of CCK.

For the word problem, If the difference of a number and the fraction \(\frac{4}{3}\) is \(\frac{11}{3}\), then the number is 5.

The above mathematical problem is a word problem. Word problems are problems that are written in words, rather than in symbols.

To solve for the difference or mystery number, we say, Let x be the number.

The problem states that x -  \(\frac{4}{3}\) =  \(\frac{11}{3}\),

movin -  \(\frac{4}{3}\) to the other side of the equation,

we get x = \(\frac{11}{3}\) + \(\frac{4}{3}\) = \(\frac{15}{3}\)

We solve the fraction by dividing 15 by 3

\(\frac{15}{3}\) = 5

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Answer:

3

Explanation:

Because it is well states and is comparisons both cells.

Explanation:

she's right it's 3 represents the cell wall and cell acts in the cell membrane and cell wall I it keeps every other stuff from getting in that's why it's called the cell wall

Answer:

it D

Explanation:

It is false that oxygen-rich blood is carried through pulmonary arteries from the lungs to the heart.

The two principal arteries leaving the right ventricle of the heart are known as the pulmonary arteries. Low-oxygen blood is seen in this lower chamber of the heart. This blood travels to the lungs through the pulmonary arteries.

The middle mediastinum contains the main pulmonary artery, as well as the pulmonary arteries that follow on the right and left. They emerge from the four chambered heart's right ventricle and carry blood to the lungs.

Right side of heart sends deoxygenated blood to pulmonary artery. Nature has made it such that this blood reaches the lungs where carbon dioxide can be released and then oxygen can be loaded.

It is true that all arteries convey oxygenated blood, with the exception of the pulmonary artery.

Thus, the given statement is false.

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