4.3.10. Network Address Translation (NAT). Which one of the following operations is NOT performed by NAT.? Select one: a. On an incoming datagram from the public Internet side of a NAT, changing the destination IP address of a datagram to a new destination IP address that is looked up in the NAT table, and (possibly after other actions), sending that IP datagram on to the LAN side of the NAT. Ob. On an outgoing datagram, changing the source IP address of a datagram received from the LAN side of the NAT O c Generating ACKs back to the TCP sender and then taking responsibility for reliably delivery the segment to its destination, possibly using a non-TCP reliable data transfer protocol. O d. On an outgoing datagram, changing the transport-layer port number of the transport-layer segment inside a datagram received from the LAN side of the NAT.
Answers
a. On an incoming datagram from the public Internet side of a NAT, changing the destination IP address of a datagram to a new destination sending that IP datagram on to the LAN side of the NAT.
NAT or network address translation is a network protocol is used by private networks to access the internet by assigning or mapping a public IP address to the private addresses.
The host with IP address 10.0.1.19 searches for the actual destination IP address 128.119.160.183 in its private network and when it does not find it, it sends the packet to the default gateway IP address 10.0.1.25, which is where the private IP address is NATted and sent to the destination.
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Related Questions
What is the unique function of central vacuoles in a plant cell?
A. they store pigments
B. they store enzymes
C. they store water
D. they store ribosomes
Answers
Answer:
They store water
Explanation:
The unique function of vacuole in a plant cell is the storage of water.
FUNCTION OF VACUOLE:
Vacuoles are organelles bound by a membrane and present in both animal and plant cells. They are fluid-filled spaces in the cytoplasm of a cell. Vacuoles are present in the central position of a plant cell, where it occupies more than half of the cell's content. Vacuoles help plant cells to store water and maintain turgidity and homeostasis in the cells of plant.Therefore, vacuoles help the plant cell to store water.
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According to cell theory, which of the following are made of cells? Check all that apply.
Answers
According to the cell theory all living things are made of cells.
What is the cell theory?Modern cell theory
Theory that cells are the basic structural, functional, and organizational units of both single-celled and multicellular organisms; cells divide and pass on hereditary information; and energy flows within cells.
Thus, all living things are made of cells.
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The haploid cells of a kangaroo contain 8 chromosomes. How many chromosomes are in a kangaroo's diploid cells?.
Answers
The number of chromosomes in a kangaroo's diploid cells is 16, as opposed to the haploid cells 8 chromosomes.
In a kangaroo's diploid cells, how many chromosomes are there?Chromosome number 20 in the red kangaroo is diploid (2n = 18+XY, 2n = 18 + XX). All chromosomes can be distinguished morphologically, with the exception of chromosomes 8 and 9, which can be distinguished by G-banding (Rofe 1979).
How many chromosomes do kangaroos have that are haploid?The important thing to remember is that these are haploid. We are aware everything is ok. We may show that 1 end would equal 8 points by dividing each side by 2 if 2 n equals 16. Therefore, this kangaroo has a haploid number of 8.
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In this discussion, you will justify the dependence of life on the sun and the interdependence of living things and their chemistry. People who do not understand the relationships between biological processes on the planet may roll their eyes at the statement, "Life on this planet is a delicate balance." What evidence have you found in this course so far to support this statement
Answers
Answer : Yes they can I will attach pic
Explanation:
why are mutations considered important in evolution
Answers
Mutations are considered important in evolution because they are the ultimate source of genetic diversity.
Mutations are alterations in the sequence of an organism's DNA, caused by radiation or toxins in the environment. They can also form spontaneously during DNA replication.Mutations can have a variety of impacts. These are frequently dangerous or have little or no impact. However, changes in DNA sequence can occasionally be helpful to the organism.Beneficial mutations that offer a survival benefit or reproductive success are more likely to be passed on to subsequent generations, increasing their frequency in the population over time. This accumulation of favorable mutations is a driving factor in the process of evolution.Without mutations, there would be no supply of new genetic information, and evolution would be greatly hampered.
Answer:
Mutations are one of the fundamental forces of evolution because they fuel the variability in populations and thus enable evolutionary change.
Complete the statement below.
The respiratory system is divided into...
A. the major and minor respiratory systems.
B. the right and left respiratory systems.
C. the relevant and irrelevant respiratory systems.
D. the upper and lower respiratory systems.
Answers
Answer:
D. the Upper and Lower Respiratory Systems
Explanation:
Upper is the nose, sinuses, etc.
Lower is the lungs, bronchial, etc.
The two topographic maps
below are of the same location
at different times.
What conclusion can you make
about why the later map looks
so different?
1859 and 2014
Answers
Answer:
Development has taken place
Explanation:
As the population increases , changes come along with land demarcation.
Natural occurrence can happen, that's, heavy rainfall can cause erosion and other things.
What is an example of a population in a desert ecosystem
Answers
Answer:
scorpions
Explanation:
scorpions live in but the desert
Part B: Find Credible Sources When designing a science presentation, look for credible sources. Science doesn’t show bias, but humans do. Avoid sites and articles that provide facts without citing proper scientific evidence. You must be able to identify reliable sites so that the data in your presentation is credible. Use sources that end in .gov, such as CDC.gov. These government sites are reliable sources. You can also use sites ending in .edu. They are usually trustworthy, but sometimes students, not scientists, write content for .edu websites. Always identify the source’s author before proceeding. Some .org and .com sites are credible, but it’s important to verify their authenticity. When reviewing a source, ask these questions: Who is the author? Is this person an HIV or AIDS expert? What is the document’s purpose? Does the document state facts that scientists can prove with evidence? Are there opinions in the document? How old is the document? Do other credible sources support the statements in the document? Search for credible websites and note the information they contain. Write down two sources that you will use for your presentation, and cite them using Modern Language Association (MLA) citation methods.
Answers
Authors whose work is regarded in their fields of the study write credible sources. Authors who are trustworthy and responsible will cite their sources so that you can verify the truthfulness of and support what they have written.
In the combustion process, oxygen and biomass are mixed in a hot atmosphere to produce carbon dioxide, water vapor, and heat. When sulfur dioxide and nitrogen oxides are released into the atmosphere and are carried by the wind, acid rain results. Fossil fuels differ from biomass in that they discharge carbon dioxide into the atmosphere. The approximate chemical formula for coal In terms of producing the most energy per unit of carbon dioxide released, natural gas is the best fossil fuel. Because a new crop can be planted after each harvest, biomass is a renewable resource and a low-carbon fuel. On carbon support, tungsten carbide and nickel form the catalyst. It is more plentiful, uninterrupted use is possible, and it is cleaner than fossil fuel.
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Discuss the difference between improvisation and adaptability
Answers
Answer:
Adapting is when you slowly adapt to the environment or the thing you are doing, while improvisation is when you improvise in order to achieve success in a shorter amount of time.
Explanation:
In the scientific name Limulus polyphemus, what is the genus? _________ species? _______.
Answers
Answer:
Limilus and L. pilyphemus
Explanation:
Atlantic horseshoe crab.
Chromosome structure
Which of the following statements concerning chromosomes is/are true? Select all that apply.
Chromosomes are composed of DNA and packaging proteins called histones so they may fit tightly into the nucleus of a cell.
Answers
Statements a, b, e, and f are true, while statements c and d are partially true. Understanding the structure and function of chromosomes is fundamental to comprehending various aspects of genetics and cell biology.
a. Chromosomes are composed of DNA and packaging proteins called histones so they may fit tightly into the nucleus of a cell.
This statement is true. Chromosomes consist of DNA molecules that are tightly wound around histone proteins. This compact packaging allows the long DNA molecules to fit within the limited space of the cell nucleus.
b. Located on each chromosome are segments of DNA known as genes or units of inheritance that code for functional products.
This statement is true. Genes are specific segments of DNA that are located on chromosomes. They contain the instructions for the synthesis of functional products such as proteins or RNA molecules.
c. Homologous chromosomes contain the same genes and the same allele combination.
This statement is partially true. Homologous chromosomes are chromosome pairs that carry the same genes, but they may not necessarily have the same allele combination. Alleles are different forms or variants of a gene, and they can differ between homologous chromosomes.
d. DNA replication occurs prior to the cell cycle, in which copies of each homologous chromosome are made, and each of these copies is called a sister chromatid.
This statement is partially true. DNA replication does occur prior to the cell cycle, and during replication, copies of each chromosome are made. However, the copies are not called sister chromatids at this stage. Sister chromatids are formed when the replicated chromosomes remain attached to each other until they separate during cell division.
e. After replication, sister chromatids, which are identical copies of a chromosome, contain identical allele combinations.
This statement is true. After DNA replication, the two sister chromatids that make up a replicated chromosome are indeed identical copies of each other. They contain the same genetic information, including the same alleles.
f. The ultimate purpose of sexual reproduction and replicating chromosomes is to pass on a copy of a cell's genes to the next generation of cells within the body.
This statement is partially true. The ultimate purpose of sexual reproduction is to pass on a copy of an organism's genes to the next generation. However, the statement specifically mentions passing on genes to the next generation of cells within the body, which is not entirely accurate.
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The Question was Incomplete, Find the full content below :
Which of the following statements concerning chromosomes is/are true?
a. Chromosomes are composed of DNA and packaging proteins called histones so they may fit tightly into the nucleus of a cell.
b. Located on each chromosome are segments of DNA known as genes or units of inheritance that code for functional products.
c. Homologous chromosomes contain the same genes and the same allele combination.
d. DNA replication occurs prior to the cell cycle, in which copies of each homologous chromosome are made and each of these copies are called sister chromatids.
e. After replication, sister chromatids, which are identical copies of a chromosome, contain identical allele combinations.
f. The ultimate purpose of sexual reproduction and replicating chromosomes is to pass on a copy of a cell's genes to the next generation of cells within the body.
9. Javier is a navigator for the navy His ship has just lost all power in the middle of the ocean, including access to your GPS. Which astronomical tool would be MOST helpful in this situation?
Answers
Natural resources are classified as renewable and nonrenewable. What is the difference between the two?
whether or not the resource exists in nature
whether or not the resource can be replaced
whether or not the resource dwindles in supply
whether or not the resource is useful to humans
Answers
Answer:
The difference between a renewable and a non-renewable natural resource is whether or not the resource can be replaced.
Explanation:
Natural resources are those useful for human beings and for that reason are consumed by them.
Renewable natural resources —such as water, plants and trees or solar energy— are usually renewed at a rate greater than or equal to their consumption, so they are not depleted.
A non-renewable natural resource, such as petroleum, usually has a limited existence, or its renewal speed is very slow, so its consumption can decrease its quantity or deplete it.
The difference between renewable and non-renewable resources is in their long-term availability or depletion.
Other options are not correct because:
Both types of resources exist in nature. Both resources can decrease, but one is renewable and the other can be depleted. Both renewable and non-renewable resources are useful for humans.Answer:
the answer is B: whether or not the resource can be replaced
Explanation:
Lesson Question:How can the presence of
one species benefit another in the same
ecosystem?
Check all correct elements below that you
included in your question.
independent variable: presence of one
species (here, worms)
dependent variable: effect on another
species (here, lima bean plants)
relationship: benefit
DONE
Answers
Mutualism is a type of symbiotic relationship where all species involved benefit from their interactions.
How can the presence of one species in the same ecosystem assist another?A mutualism occurs when two species have a long-term relationship that benefits both of them (+/+ interaction). Some fungi, for example, create mutualistic relationships with plant roots. The plant may photosynthesize and gives fixed carbon to the fungus in the form of sugars and other organic compounds.
The presence of several species in an ecosystem balances it. The species in an ecosystem interact with one another in some way. For example, the existence of a plant species will offer food for the numerous herbivores found in an ecosystem. A predator may consume a variety of prey. As a result, the existence of diverse prey reduces the likelihood of a species becoming extinct in the ecosystem. As a result, all creatures in an ecosystem are dependent on one another in some way.
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Word Bank:
Cell wall, cell membrane, capsid, nucleus, mitochondria, membrane-bound organelles, central vacuole, made of cells, requires host cell, grow and reproduce, can obtain energy, may cause disease, antibiotics may be used to treat infection, vaccines are used to prevent infection, living thing, DNA, and RNA.
From the word bank above list each beside Prokaryotic, Eukaryotic, and virus. All words may be used more than once.
Prokaryotic cells:
Eukaryotic cells:
Viruses:
Answers
Prokaryotic cells: cell wall, cell membrane, nucleus, central vacuole, made of cells, can obtain energy, grow and reproduce, DNA, and RNA.
Eukaryotic cells: cell wall, cell membrane, nucleus, mitochondria, membrane-bound organelles, central vacuole, made of cells, can obtain energy, grow and reproduce, DNA, and RNA.
Viruses: capsid, requires host cell, may cause disease, antibiotics may be used to treat infection, vaccines are used to prevent infection, living thing, DNA, and RNA.
What are viruses?Viruses are small infectious particles that propagate solely inside living cells of other organisms. Their structure comprises genetic material bound by a protein coat called a capsid, with some viruses displaying an additional lipid envelope surrounding the capsid.
Since viruses cannot self-reproduce, host cells are crucial to their replication and production.
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list and describe different type of physical and chemical weathering
Answers
Physical weathering is freeze-thaw, which finally breaks the rock, and chemical weathering processes like dissolution.
What is physical and chemical weathering?Physical weathering, when water seeps into cracks over time, freezes, and then expands, it undergoes a process called freeze-thaw, which finally breaks the rock.
Acid rain, which is brought on when carbonic acid dissolves rocks, is chemical weathering. Rocks break to generate soil as a result of other chemical weathering processes like dissolution.
Therefore physical weathering includes the breaking of rock and chemically dissolving rocks.
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What is the interpretation of the influence of the heavenly bodies on
human affairs.
O Astronomy
Astrology
Asteroid
Android
Answers
To explain scientific biological phenomena, scientists use a technique called
A~ the scientific method
B~ the scientific law
C ~ conclusions
D~ measurements
Answers
Answer:
the scientific methothe formula and testing of a hypothesis is part of the scientific method
The combination of natural resources in a forest (air, light, soil, water) determine
A. the size of the forest.
B O the kind of fauna and flora,
C. the amount of eggs a bird can lay.
D. O none of the above
Answers
Answer:
a.the size of the forest.?
Explanation:
I don't know
Which example demonstrates divergence? (1 point)
Species A and B evolve into species C.
Species A goes extinct.
Species A does not evolve.
Species A evolves into species B and C.
Answers
The example Species A evolves into species B and C. demonstrates divergence (d option).
What is the evolutionary process of divergence between species?The evolutionary process of divergence between species makes reference to the modification of the features of one population which may lead to the generation of two or more different species when appearing barriers of reproductive isolation.
Therefore, with this data, we can see that the evolutionary process of divergence between species is based on the generation of evolutionary adaptive features that may lead to the speciation process of one primitive population.
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QUESTION 5
A family left California to live in Idaho. Which of the following
occurred for the California population after this family moved?
SELECT AN ANSWER
emigration
immigration
Answers
Answer:
emigration
Explanation:
Emigration-the act of leaving one's own country to settle permanently in another; moving abroad.
Which organisms can reproduce using the process of fragmentation
Answers
Fragmentation is a form of asexual reproduction and is seen in annelids, fungi, cyanobacteria, sponges, and flatworms.
In Fragmentation, an organism divides itself into a number of fragments. It occurs when an organism completely breaks down independently irrespective of the other parts. Each one of these fragments matures into fully grown adults that are clones of the original organism.
Asexual reproduction usually involves the participation of a single parent alone can produce new offspring. The newly produced individual is genetically identical to one another and its parent. Both multicellular and unicellular organisms divide by fragmentation which is asexual reproduction.
Fragmentation is the most common method of reproduction in lower invertebrates. It is seen in many organisms including filamentous cyanobacteria, algae, lichens, molds, many plants, and animals such as flatworms, annelid worms, sponges, and sea stars.
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The organisms that can reproduce by fragmentation are Option d Sponges and Sea anemones.
Fragmentation is a form of asexual reproduction in which an organism breaks into two or more fragments, and each fragment develops into a new individual. Both sponges and sea anemones are examples of organisms that exhibit this mode of reproduction.
Sponges are simple multicellular animals that lack true tissues and organs. They possess a porous body structure, and when a sponge is fragmented, each fragment has the potential to develop into a new sponge through regeneration. These fragments contain specialized cells called archaeocytes that can differentiate into various cell types required for the formation of a new sponge.
Sea anemones, on the other hand, are marine animals belonging to the phylum Cnidaria. They have a cylindrical body with tentacles surrounding their mouth. When a sea anemone is fragmented, each piece can regenerate into a complete individual. The process involves the differentiation of cells within the fragments, leading to the development of new tentacles, body parts, and eventually a mature sea anemone.
Both sponges and sea anemones have remarkable regenerative abilities, allowing them to reproduce through fragmentation. This form of asexual reproduction enables them to colonize new areas, expand their population, and adapt to changing environmental conditions. Therefore the correct option is D
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The Question was Incomplete, Find the full content below :
The organisms which can reproduce by fragmentation are:
(a) Corals and Sponges
(b) Corals and Spirogyra
(c) Sea anemone and Spirogyra
(d) Sponges and Sea anemones.
Organisations and occupations in sport and active leisure assignment
Scenario The college careers team require your support researching the organisations and occupations that exist within the sport and active leisure industry.
After looking at a number of sports organisations operating in different sectors and the occupations associated with each, you will look in depth at two different occupations to support the work of the college careers department.
Task 1
Research organisations locally (within Suffolk) that operate a business(es) in the sport/active leisure industry within the following sectors:
• Public sector: Examples include, Crown Pools, Whitton and Gainsborough Sports Centre. Consider benefits such as how accessible each centre is, how affordable each facility is to use etc…
• Private sector: Examples include, David Lloyd Health Club, Avid Climbing Centre. Consider benefits such as the use of the latest equipment, monthly membership schemes etc…
• Voluntary sector: Examples include, Needham Market F.C., Pipers Vale Gymnastics Club, Ipswich YM Rugby Club. Consider benefits such as low cost, community focused, participation driven etc…
• Joint/Dual use: Examples include, Chantry High School/Body and Mind Gym, East Bergholt Sports Centre/Abbeycroft Leisure. Consider benefits such as improved usage, links between educational providers and industry etc…
Task 2
Research two occupations in the sport and active leisure industry that interest you. Occupations you could carry out research into could include:
• Sports assistant
• Fitness Instructor
• Personal Trainer
• Community coach
• PE teacher
• Physiotherapist
• Sports therapist
• Performance analyst
• Strength and conditioning coach
For each of the careers you have chosen to explore, you need to carry out research into the following:
• Responsibilities of each role, this could include; customer care, ensuring high level performance, increasing participation, health and safety, safeguarding.
• Skills required for each role, which could include; communication, motivation, time management, leadership, organisation.
• Requirements of each occupation, which may include; qualifications and training, DBS, first aid, level of experience.
For each occupation you must explain the advantages and disadvantages of the role. Consider factors such as; pay, working hours, working days, flexibility of working patterns, if outdoor work is required.
Evidence you must produce for this task
A written report comparing different sports organisations with an explanation of the occupations associated with some of the organisations operating in the sport and active leisure industry.
Criteria covered by this task:
To achieve the criteria you must show that you are able to:
Unit
Criterion reference
P1 Describe the different types of organisation in the sport and active leisure, and the benefits of each.
P2 Using information from selected sources, describe the requirements for, responsibilities of, and skills required by two occupations in sport and active leisure.
M1 Explain, using relevant examples, the benefits of each of the different types of organisation in the sport and active leisure industry.
M2 Summarise selected information about occupations in sport and active leisure, describing the advantages and disadvantages of each.
D1 Compare and contrast the benefits of each type of organisation in sport and active leisure.
D2 Explain the advantages and disadvantages of occupations in sport and active leisure.
Answers
Explanation:
Report on Organisations and Occupations in the Sport and Active Leisure Industry
Introduction
The sport and active leisure industry is a diverse sector that includes various organisations and occupations. This report aims to provide an overview of the different types of organisations operating in the sport and active leisure industry, as well as a detailed analysis of two occupations in the industry. The report will cover the benefits of each organisation type, as well as the responsibilities, skills, and requirements of the selected occupations. The organisations and occupations have been researched mainly in the Suffolk region.
Task 1: Different Types of Organisations in the Sport and Active Leisure Industry
Public Sector
Public sector organisations in the sport and active leisure industry are typically operated by the local government or the council. They are funded by the government and provide affordable sports and leisure facilities to the local community. Examples of public sector organisations in Suffolk include Crown Pools, Whitton, and Gainsborough Sports Centre. The benefits of public sector organisations are that they are accessible and affordable to the general public. They also promote social inclusion and community cohesion.
Private Sector
Private sector organisations in the sport and active leisure industry are typically for-profit companies that provide high-quality sports and leisure facilities to their members. Examples of private sector organisations in Suffolk include David Lloyd Health Club and Avid Climbing Centre. The benefits of private sector organisations are that they use the latest equipment and technology. They also offer monthly membership schemes that allow members to enjoy the facilities at an affordable price.
Voluntary Sector
Voluntary sector organisations in the sport and active leisure industry are typically non-profit organisations that rely on donations and volunteers to operate. Examples of voluntary sector organisations in Suffolk include Needham Market F.C., Pipers Vale Gymnastics Club, and Ipswich YM Rugby Club. The benefits of voluntary sector organisations are that they are community-focused and participation-driven. They also offer low-cost sports and leisure activities to the local community.
Joint/Dual Use
Joint or dual-use organisations in the sport and active leisure industry are typically public or private sector organisations that operate in partnership with educational providers such as schools and colleges. Examples of joint/dual-use organisations in Suffolk include Chantry High School/Body and Mind Gym and East Bergholt Sports Centre/Abbeycroft Leisure. The benefits of joint/dual-use organisations are that they improve usage and promote links between educational providers and the industry.
.
How was hellenistic Greece influenced by Classical Greece?
Answers
Classical Greece helped with the art and construction styles.
LIMITED TIME!!!!!! HELP!!!!!!!!
In the Galapagos Islands, species of tortoises have been found on
different islands that cannot interbreed. They came from the same
tortoise ancestor, but over time they became separate species
because they were on different islands. Today there are a total of 9
different Galapagos tortoise species. Which type of isolation is
this?
Select one:
A, episodic isolation
B, geographic isolation
C, temporal isolation
D, behavioral isolation
Answers
Answer: B
Explanation:
The Galapagos tortoises became separate species because they were on different islands. This is an example of geographic isolation, where the separation of physical barriers (in this case, different islands) prevents gene flow and leads to the divergence of populations and the eventual formation of new species
____ is known as the coping of dna
Answers
Answer:
Replication
Explanation:
The copying of DNA is called DNA replication. The steps of DNA replication are the opening of the double helix and separation of the DNA strands, the priming of the template strand, and the assembly of the new DNA segment.
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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.
Answers
Only once bacteria come into touch with carbapenems do they develop resistance. This bacterial drug resistance is an illustration of how non-resistant bacteria can mutate into resistant strains.
The original "carbapenem," thienamycin, would become the parent or model compound for all subsequent carbapenems. Recent research demonstrates unequivocally that carbapenem resistance is growing globally. In particular when porin losses occur, excessive synthesis of weak carbapenemases as CMY-10 and PDC Beta-lactamases might result in carbapenem resistance. Gram-positive bacteria develop resistance to carbapenems and other beta-lactam antibiotics through mutation-derived modifications to their PBPs, whereas Gram-negative bacteria frequently enlist the help of additional defense mechanisms to combat the effects of these drugs.
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How does hypnotism work
Answers
Answer:
During hypnosis, the scientists found, a region of the brain called the dorsal anterior cingulate cortex became less active. Studies have found that that region helps people stay vigilant about their external environment. ... The activity in their dorsal anterior cingulate cortex may account for that behavior, too.
which of following best describes why the formation of polysaccharides is beneficial to organisms?
Answers
Answer:
I do not see any choices provided. So instead I will explain why polysaccharides are beneficial to living beings.
They are one of the three carbohydrates found in all of the food you eat!
It is a long chain of carbohydrates which is a major source of energy for organisms.
This means polysaccharides help the lifetime of an organism by providing energy!