Carbapenems are b lactam antibiotics, as are penicillins and cephalosporins, which work by inhibiting cell wall biosynthesis in bacteria. In recent years, more cases, mostly in patients who have been hospitalized for a long period of time, of bacteria showing resistance to Carbapenems have been reported. In these patients, this drug could no long control bacterial infections. Check ALL the statements that are correct:



Question 1 options: Bacteria that are resistant to Carbapenems did not exist before these drugs were used.
Carbapenems are the selecting agent Bacteria become resistant only after they come into contact with Carbapenems
This development of drug resistance by bacteria is an example of evolution
Non-resistant bacteria become resistant strains via mutation
The rate of mutation (to resistant strains) is always increased by the use of Carbapenems
The rate of survival among resistant bacteria is always increased by the use of Carbapenems
The change from non-resistant to resistant bacterial strains are not due to changes in genes.
Cabapenem-resistant bacteria may come into existence if Carbapenems are not used.

Contaminated water is a type of water that is harmful to human beings due to the presence of harmful substances, pollutants, or impurities that make the water unsafe for drinking or other household uses. The characteristics of contaminated water can be identified through various indicators, which can either be physical, biological or chemical.

Physical indicators are visible and may include color, taste, and odor, while biological indicators are not visible and may include bacteria, viruses, and protozoa. Chemical indicators may include heavy metals, pesticides, and organic compounds, among others.

Physical Characteristics: Physical characteristics of contaminated water include cloudy or turbid appearance, unusual taste or odor, or discoloration of the water. The color may range from yellow to brown, blue to green, or even black.

Biological Characteristics: Biological characteristics of contaminated water include the presence of bacteria, viruses, or protozoa. These microorganisms can cause diseases such as diarrhea, typhoid, cholera, and dysentery.

Chemical Characteristics: Chemical characteristics of contaminated water include the presence of heavy metals such as lead, arsenic, or cadmium. Pesticides and fertilizers can also contaminate water and affect human health. Organic compounds like benzene and toluene can also be present in contaminated water, which can lead to health problems such as cancer and nerve damage.

Therefore, it is important to test water sources regularly to identify and monitor any contaminants that may be present. This can help prevent health problems associated with the use of contaminated water.

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The best statement that justifies the inclusion of test tube 5 in the experiment is: It will act as a control for test tube 6 by showing the effect of a change in sodium chloride concentration. Hence option 'G' is correct.

By breaking the cell walls enzymatically, pectinase is used to extract, clarify, filter, and depectinize fruit juices and wines. It is also used to macerate vegetables and fruits and remove the inner wall of the lotus seed, garlic, almond, & peanut.

Because pectin plays a big role in the human diet, pectinase is an effective digestive aid. Pectin is utilised as a thickening and gelling ingredient in many prepared foods, such as jams and jellies, in in addition to natural food components such fruits and vegetables.

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Answer:

It is through Gender socialization

Explanation:

Hope this helps!

The plant produce contaminated with the protozoan that causes amoebic dysentery when placed in 5% salt solution will kill the contaminants due to osmotic difference. The produce then can be brought back to normal by placing in pure water.

Amoebic dysentery is the disease caused by the microorganism called Entamoeba histolytica. The source of infection is human fecal matter. The symptoms of the disease includes abdominal cramps and diarrhea.

Osmotic difference is the difference of solute particles between two substances. When the protozoan cells are placed in salt solution, the salt solution has more solute particles that causes the secretion of water to the outside of protozoan cell, therefore causing its death by dehydration.

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Answer:

a.Side with a lower consitration of squares.

b.Transport protien.

c.Energy imput from the cell.

d.Plasma membrain.

e.Side with a higher consitration of squares.

I think.

The author's belief is that Winslow Homer's paintings depict the exciting tension between the standard of thermodynamics and the human desire for control and stability.

Homer's use of nautical and outdoor settings, as well as welcome depictions of labor and industry, represent the conflict between everything in creation's energy and the human struggle to harness and hold it.

Winslow Homer's work was created all along the late 19th century, a time of excellent technological and modern progress in America. The nation was extending westward, and skill was a growing interest in the natural world and the allure of power.

Homer's paintings indicate this cultural circumstance, as well as welcome personal experiences as a journalist covering war during the Civil War.

Homer's paintings frequently depict nautical scenes, in the way that storms, shipwrecks, and fishing expeditions. He also commonly portrays labor and manufacturing, such as lumberers, miners, and ironworkers. The content of his paintings stresses the struggle between humans and character, as well as the desire for control and expertise over the environment.

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Answer: A y B son correctas

Explanation:

This is a problem in the field of ecology.

The problem of quagga mussels in the lake is an ecological issue that requires scientific assessment and management.

It falls under the discipline of ecology, which studies the relationships between organisms and their environment.

Ecologists investigate the impacts of invasive species on the ecosystem and devise strategies to control their spread and minimize their effects.

In this case, scientists will need to examine the size of the quagga mussel population, their distribution, and their ecological interactions with native species.

They will also need to recommend measures to prevent further introduction of quagga mussels and to manage their population growth, such as using chemical treatments or biological controls.

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The comparison of the "rabbit-whale" relationship to the "dog-pig" relationship on the cladogram is linked based on their evolutionary relationships.

This refers to the branching diagram that is used to show the link and the cladistic relationship that exists among different species.

Hence, we can see that based on the fact that rabbit-whale and dog-pig have a common ancestor and origin, on a cladogram, it can be stated and proven that they have an evolutionary relationship.

Therefore, the use of cladograms makes use of molecular data to show the homology level of nucleotide sequences of the genome.

Therefore, when the relationship of the "rabbit-whale" relationship to the "dog-pig" relationship was analyzed on the cladogram, it was found that they have a common ancestor.

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The author's belief is that Winslow Homer's paintings depict the exciting tension between the standard of thermodynamics and the human desire for control and stability.

Homer's use of nautical and outdoor settings, as well as welcome depictions of labor and industry, represent the conflict between everything in creation's energy and the human struggle to harness and hold it.

Winslow Homer's work was created all along the late 19th century, a time of excellent technological and modern progress in America. The nation was extending westward, and skill was a growing interest in the natural world and the allure of power.

Homer's paintings indicate this cultural circumstance, as well as welcome personal experiences as a journalist covering war during the Civil War.

Homer's paintings frequently depict nautical scenes, in the way that storms, shipwrecks, and fishing expeditions. He also commonly portrays labor and manufacturing, such as lumberers, miners, and ironworkers. The content of his paintings stresses the struggle between humans and character, as well as the desire for control and expertise over the environment.

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Rank each state of water in order of increasing density, starting with the least dense state at the top of the list. That is given below-

water vapor

ice

liquid

What is density?

How dense a substance is in a specific area is determined by its density. A density of material is defined as its mass per unit volume. It is essentially a measure of how tightly something is packed. It is a specific physical quality of a certain thing. The density principle was discovered by the Greek scientist Archimedes. Calculating density is easy if you are familiar with the formula and the necessary units. Instead of the symbol, the word "density" can be represented by the letter "D."

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Answer:

D mitochondria

Explanation:

The mitochondria is an important main part to the cell by  generating most of the power the cell needs.

Answer:

D. mitochondria

Explanation:

It is also important part of cell

Water breathing animals do not face a challenge for respiration in water because they have evolved ways to optimize oxygen uptake from the water they inhabit.

These animals have adapted specialized gills that contain a large surface area which enables them to efficiently absorb oxygen from the water. They also have an increased number of blood vessels in their gills which increases the oxygen uptake from the surrounding water.

Additionally, the blood vessels in their gills contain counter current exchange systems that enable them to extract more oxygen from the water. This adaptation allows these animals to extract more oxygen from the water than would otherwise be available in the surrounding environment.

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A long, thin tube called the pollen tube develops from the pollen grain once it touches the flower's stigma this pollen tube allows sperm cells of plants to move through the style. So, the answer is Pollen tube.

When a female gametophyte undergoes double fertilization, male gametes or the sperm cells are transported to the female gametophyte via pollen tube, which results in the production of the seed.

Two sperm cells are found in the pollen tube, which grows along the flower's style until it reaches the ovule. After that, the sperm cells go through the pollen tube to fertilize the ovule's egg cell.

Therefore, pollen tube is the structure that allow sperm cells to move through the style.

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The given question is incomplete, the complete question is:

"The structure allow sperm cells of plant to move through the style:"

Answer:

strength: it provides raw material for plants and major component of food.

weaknesses: it increases earth's temperature and change the habitat.

Explanation:

The diagram shows the carbon cycle which is important cycle present on the earth. This carbon is present in carbondioxide form which is used as a raw material by plants in order to make their own food. This carbon is also present in different organic compounds. When its concentration increases in the atmosphere, the temperature of the atmosphere increases and many areas are not suitable to live for many plants and animals.

Water's universal solvency property is responsible for blood being able to carry away wastes. It means certain amino acids, iron and sodium chloride can be carried around the blood more efficiently. Water is the universal solvent is because no solvent can dissolve as many substances as it can. That's why it is critical to life on earth.

Capillaries have tiny blood vessels have thin walls. Oxygen and nutrients from the blood move through the walls and reach organs and tissues. The capillaries also take waste products away from tissues.

Blood flows into the kidneys through the renal arteries and get out through the renal veins. The kidneys filter substances such as urea and uric acid out of the blood plasma and into the ureters .Water is very essential because it transports nutrients to cells and removes wastes from cells. It is the medium where all transport systems function, allow exchanges between cells, interstitial fluid and capillaries.

Kidney and urinary systems help in getting rid of liquid waste called urea. They also help to keep chemicals and water in balance. Urea is produced when foods having protein are broken down in the body.

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Property that responsible for blood being able to carry away wastes is the Water's universal solvency . Water is the universal solvent as no solvent can dissolve as many substances as it can. Water is an excellent solvent which means that that it can dissolve  different kinds of molecules.

Water's  capability to dissolve variety of molecules has made it the “universal solvent,” and due to this ability , water has become invaluable life-sustaining force. Water as a solvent helps cells transport and use substances like oxygen or nutrients.

Process of removing wastes and excess water from the body is called excretion. Organs that make up the excretory system include kidneys, large intestine, liver, skin, and lungs.

Waste products are released when cells in the body perform their functions. These are toxic to the body and hence need to be removed. If they are not removed on time, they can cause problems in our body and lead to diseases.

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Anaphase occurs during the M phase (mitosis) of the cell cycle and is not represented by any of the provided options (A, B, C, or D).

Therefore, the correct answer is not provided in the given options. Anaphase occurs during the M phase or mitosis and is not associated with any specific phase (A, B, C, or D) mentioned in the question.

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Answer:

paradigm

Explanation:

Answer:

the maximum population size that a particular environment can support.

Explanation:

A population can be defined as the total number of living organisms living together in a particular place and sharing certain characteristics in common.

Generally, these populations may be divided into a fraction of the population (subpopulation) based on certain factors and reasons.

Population regulation can be defined as a biological process that balances limiting factors affecting the growth of a population based on density. The factors that regulate the growth of a population are divided into two (2) main categories and these includes;

I. Density-independent factors.

II. Density-dependent factors.

Density-dependent are regulating factors such as predation, diseases, and competition that affect the size of the population of living organisms through decreasing or increasing mortality and birth rate.

Furthermore, density-independent factors do not have an increasingly greater effect as a population's density increases. Thus, its effect are reduced as a population's density increases in size.

Carrying capacity is the maximum population size that a particular environment can support. The carrying capacity of an environment is denoted by the letter k.

Answer: C.

Explanation:

Study more! <3

Answer:

Is it XXX that all males want?

Explanation:

Just joking! I still think it is XXY

The genotype that represents males is XY of 50 % of both  X and Y chromosomes where a slight change in the alignment might cause to chromosomal disorders .

XXY , XYY ,  XY represents males genotypes.

What are chromosomal disorders ?

These are the disorders which are associated with the change in the normal XY sequence of males. Various disorders and syndromes are associated with the mutation and the responsible factor can be trisomy like.

XXY  is  a chromosomal mutation found in the males only called as Jacob syndrome, XYY is a chromosomal disorder called as klinefelter syndrome  found in males only.

XX is the genotype of a female, XXX is a condition that affects 1 in every 1000  females.

Thus, except XX and XXX is the exception as both of these represent females.

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Many disorders are due to the inability of an individual to break down a particular chemical. A person who has a disease called phenylketonuria (PKU).

Which prevents them from breaking down the amino acid phenylalanine, this is one example of a person who is unable to break down a chemical in their body.

Giving a person the right enzymes can help treat these diseases. Chemicals in our bodies are broken down by enzymes, which act as biological catalysts.

Therefore, if a person is deficient in the right enzyme, that person can be cured by giving them that enzyme. Let's discuss the remaining options.

Antigens are dangerous foreign substances that have gotten inside the body. The genetic material is stored on chromosomes, which are found inside the nucleus.

Organelles are cellular structures, such as the mitochondria, nucleus, and endoplasmic reticulum, that have particular roles.

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Your question is incomplete, but most probably your full question was,

Many disorders are due to the inability of an individual to break down a particular chemical. Sometimes these disorders can be treated by giving the affected individual the appropriate

(1) enzymes

(2) antigens

(3) chromosomes

(4) organelles

While bases take protons in processes, acids donate protons (H+). While bases have a pH of 7 or higher, acids have a pH of 7.

While bases take protons in processes, acids donate protons (H+). While bases have a pH of 7 or higher, acids have a pH of 7. Acids release H+ ions while bases release -OH when they separate in water. While acids render litmus paper red, bases turn it blue.

1) In Experiment 1, the color of the solution changes from light (suggesting base) to dark when the acid is introduced (suggesting acid). As a result, adding the acid in this instance produced an ACIDIC solution.

2) In Experiment 2, the reverse is accurate. The hue stays light even after the addition of the acid (suggesting base). The outcome in this instance is BASIC as a result.

3) When the acid is given to the base to buffer it, this is Experiment 2. As you recall, a buffer solution is one that doesn't alter in pH when an acid or basic is introduced. We may infer that the addition of the acid in Experiment 2 was made to produce a buffer solution because it was done so the pH didn't fluctuate as much as it did in Experiment 1.

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Answer:

In biology, evolution is the change in the characteristics of a species over several generations and relies on the process of natural selection. The theory of evolution is based on the idea that all species? are related and gradually change over time.

Explanation:

Answer:

evolution means the making of judgement about the amount number or value of something

Answer:

The process of diffusion of solvent particles from the region of less solute Concentration to a region of High solute Concentration through semi-permeable Membrane is known as (osmosis)

Explanation:

The layers of atmosphere are differentiated on the basis of different temperature gradients.Thus,different layers within the atmosphere are created.

Toposphere is heated from the ground. Thus, with increase in altitude temperature decreases.

In the stratosphere, temperature increases with altitude. The direct heat source for the stratosphere is the Sun. Air in the stratosphere is stable because warmer, less dense air sits over cooler, denser air.

In Mesosphere temperature decreases with altitude. Few gas molecules present in mesosphere absorb sun's radiation.The heat source is the stratosphere below. The mesosphere is extremely cold, especially at its top, about -90°C.

Thermosphere which also contains ionosphere.The density of molecules is so low in here that one gas molecule could easily go upto 1 km before it collides with another molecule. It is so little energy is transferred, the air feels very cold