Select the correct answer from each drop-down menu.
Cholera is a bacterial infection of the small intestine. Vaccination provides protection against cholera. The cholera vaccine is made up of a
weakened form of the bacteria that causes cholera The vaccine will stimulate
v| production and elicit an immune response. If the
infection occurs again, the body will produce an even greater attack on the bacteria because of ?

The doctors use CT scan to diagnose the exact position of the blood clotting. Than they use MRI to see the exact image of injury which is inside the brain. At last they use PET scan to know the metabolic function of tissue which get injured.

CT scan is a medical imaging and it has been a diagnostic imaging which produce a combination of the X-rays as well as computer technology that produce the inner picture of the body.

MRI stands for magnetic resonance imaging and it is a type of scan which has been performed to produce the descriptive snaps of the body from inside.

PET scan stands for positron emission tomography and in PET scan an imaging test conducted that help to identify the metabolic function of a particular tissue.

Therefore, The doctors use CT scan to diagnose the exact position of the blood clotting. Than they use MRI to see the exact image of injury which is inside the brain. At last they use PET scan to know the metabolic function of tissue which get injured.

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All of the following are found in the human body except albumin.

Lipids are the kinds of fat in the body. Triglycerides, cholesterol, estradiol, and phospholipids are found in the human body.

Albumin is a egg protein found in eggs. More than 95% of the lipids in the diet are composed of triglycerides, which are frequently present in fried meals, butter, milk, cheese, and some meats.

Only around 2 percent of the dietary lipids are phospholipids. They exist in both plants and animals and are water soluble. Estradiol is a kind of steroid hormone.

Therefore, All of the following are found in the human body except albumin.

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Answer:

True

Explanation:

Polypeptides are made from sequence of nucleotides which form a polypeptide chain; all proteins are made from one or more linked polypeptide chains.

Answer:

false

Because not string of nucleotides

Although it is far high on the main sequence, a more massive star starts its existence in a similar way, with hydrogen being transformed to helium.

Because of the biochemical and kinetic impression they leave on the environment, massive stars are important forces in the existence of the universe. They are major contributions to the spectrum of galaxies and excellent tracers of stellar evolution in the expansion Of the universe due to their extreme brightness. Understanding the universe requires a precise description of huge stars. Due to their production of powerful stellar winds, intense radiation, and supernova explosions—features essential for the development of galaxies—these stars have a significant impact on their surroundings.

Massive stars, despite being very few in number, have a fundamental impact on the interstellar space and the history of the galaxy because they ionise the encircling gas and deposit potential power first through powerful stellar winds, then as supernovae.

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The enzyme that is most likely to have an allosteric site is enzyme 1.

Allosteric enzymes generally catalyze practically irreversible reactions, so for this reason they are strategically located at certain points of the metabolic pathways, thus their regulation cooperates effectively in the general economy of the cell.

Then we find them as the first enzyme of a sequence of reactions, like the one shown in the image, in such a way that their activation or inhibition respectively increases or decreases the speed of the entire metabolic pathway involved according to the needs of the cell.

Therefore, we can confirm that the enzyme that is most likely to have an allosteric site is enzyme 1.

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Using tools and making inferences is not a part of comparative investigations. The correct option is D.

To make a comparison, comparative investigations involve collecting data on different organisms/objects/features or collecting data under different conditions (e.g., times of year, temperatures, locations).

Descriptive research is used to reach a conclusion or inference. Relationships are determined through comparative studies.

A hypothesis should be established in both comparative and experimental studies.

Subjects in causal-comparative research are already divided into groups because the action or event has already occurred, whereas subjects in experimental research designs are chosen at random prior to variable manipulation.

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Answer:

B. testing hypotheses and identifying variables

Explanation:

cause im like that;)

Answer:

D - active transport move molecules against the concentration gradient.

Explanation:

We can use our knowledge of science in our daily life in the form of time management, quantity, speed and in many more other things.  

We can use the knowledge of science in our everyday lives in many ways.

1. When we go to the shop and want to buy sugar then we first calculate the amount of sugar that it is in kilo gram or in gram. This shows that it involves the physical units of physics means science.

2. When we drive a car so we can change our speed by time to time and by place to place. The changing of speed of the car in kph (kilo meter per hour) or in mph shows that this also involves the physics calculation means science.

3. In our daily life if we want to go to some place then we calculate our time according to condition. So this shows that the time also involves the physics which means the science.

So we can conclude that we can use our knowledge of science in our daily life in the form of time management, quantity, speed, medicine and in many more other things.  

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Answer:

grass lol

Explanation:

Answer:1)False2)True3)true4)false5)true

Explanation:1)Heat of vaporization is the amount of heat absorbed when one mole of a liquid is changed into vapours.

2)The close packing of molecules in saturated fatty acids make them solids.While the molecules in unsaturated fatty acids have the bends that dont allow them to pack tightly and they appear as oils.

3)Study Of various chemical constituents of food like carbs,proteins,lipids etc

4) The simplest life form is known as bacteria,but not surrounded by a protein coat.Protein coat(capsid) is a characteristic of virus.

5)carbs give bulkness,sweetness,coating ability,viscosity etc

Answer: They had a much longer time to develope their relationships.

Explanation; They also produce much faster so there is more time for them to form the relationship. They also need the resources they can't get on their own.

HOPE THIS HELPED!!

Answer:

If im correct i think ur cells start to decrease. and then u have like a heart attack

Explanation:

Answer:

The cell wall is an outer protective membrane in many cells including plants, fungi, algae, and bacteria. Animal cells do not have a cell wall. The main functions of the cell wall are to provide structure, support, and protection for the cell

Explanation:

The cell wall's function is to provide structural strength and support as well as protection for the innards of the cell.

All cells other than animal cells have some sort of cell wall. Animals do not need cell walls because they typically have a skeleton, allowing for more free movement. Cell walls provide rigidity to allow for plants to obtain a exoskeleton.

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The sentence that describes an example of an experimental investigation is Students to test the effect of light intensity on oxygen production by plant cells. The correct option is C.

An experimental investigation is when someone investigates the reason behind a natural phenomenon. This reason is logical and genuine facts are given.

Finding the light intensity of oxygen production by plant cells is an experimental investigation.

Thus, the correct option is C. Students test the effect of light intensity on oxygen production by plant cells.

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The statement that is true about both mitochondria and chloroplast is as follows:

Mitochondria is the ovoid shaped organelle found in the cytoplasm of eukaryotic cells and contains genetic material (DNA) separate from that of the host. It is responsible for the conversion of food to usable energy in the form of ATP.

On the other hand, the chloroplast is an organelle found in the cells of green plants where photosynthesis takes place, characterized by a high concentration of chlorophyll and two membranes.

Based on the description of these two organelles, it can be said that both organelles possess the following features;

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Explanation:

four stage process in which the cell increases in size gap 1, or G1 , stage, copies its DNA synthesis, or S, stage, prepares to divide gap 2, or G2 , stage, and divides mitosis, or M, stage.

Answer:

C

it seems to "click" with the question

Adaptations generally affect a species through the fact that they make the species more genetically diverse. Thus, the correct option is C.

Species may be defined as a  group or collection of organisms that can significantly reproduce with one another in nature in order to produce viable offspring. The process of speciation is responsible for the formation of new species within any geographical location.

On the other hand, adaptation may be characterized as a continuous process of modification that an organism performs in order to make them fitter for existence in a particular geographical location. This process of modification in the long term can definitely lead to speciation where new species may arise.

Therefore, adaptations generally affect a species through the fact that they make the species more genetically diverse. Thus, the correct option is C.

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Compounds exist as pure substances created of two or more kinds of atoms bound together. Compounds can even be broken down into easier substances.

A compound is a substance created by the chemical fusion of two or more elements. Covalent bonds and ionic bonds are two typical forms of bonds that hold components in a compound together. Any compound will always include each ingredient in a specific ratio.

A compound is a pure material that is created when two or more components are chemically mixed in a specific (or constant) mass proportion (or weight). when at least two elements combine chemically to create a compound, a new substance.

Pure substances known as compounds are created by joining two or more different types of atoms. Additionally, compounds can be divided into more basic components.

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Explanation:

Because the root cells are typically in the dark and cannot do photosynthesis, they lack of chloroplast

CJD research was suspended in France because following the discovery that a former laboratory employee has been diagnosed with Creutzfeldt-Jakob disease, all publicly financed laboratories in France have suspended using infectious prions for a period of three months.

On July 27, the French government and five of the country's largest public research institutions jointly announced that prions—misfolded proteins thought to be responsible for a number of disorders, including Creutzfeldt-Jakob disease—would no longer be used in research.

The Creutzfeldt-Jakob disease (CJD) patient, whose form is still unknown, is a former INRAE employee. This may be the second instance of infectious CJD affecting a scientist who studied prions, following the death in 2019 of an assistant engineer who contracted the illness after being hurt in an experiment in 2010.

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He provides an example of how the air is moved about the aircraft. The polluted air is spread throughout the aircraft when someone sneezes. This indicates that because the sneeze was so little, it was inhaled by everyone aboard the aircraft.

What is air pollution?

Air pollution is the modification of the natural features of the atmosphere by any chemical, physical, or biological factor in either the interior or outdoor environment.

Common causes of air pollution include motor vehicles, industrial operations, household combustion appliances, and forest fires. Particulate matter, carbon monoxide, ozone, nitrogen dioxide, and sulfur dioxide are pollutants of great public health concern. Indoor and outdoor air pollution are significant contributors to morbidity and death and are known to induce respiratory and other illnesses.

Therefore, he provides an example of how the air is moved about the aircraft. The polluted air is spread throughout the aircraft when someone sneezes. This indicates that because the sneeze was so little, it was inhaled by everyone aboard the aircraft.

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From matching Words With there characteristics we have,

1. Cytoskeleton - 3

2. Peroxisomes - 2

3. Microfilaments - 4

4. Smooth Endoplasmic Reticulum – 1

1. Cytoskeleton

Function: Maintains the cell's form and provides it with mechanical structure. a balance between opposing forces acting on it keeps it stable. provides organelles and enzymes in the cytosol with anchoring. can be taken apart and put back together again to modify the shape of the cell.

As a result of interactions between motor proteins and the cytoskeleton, cells can move and change location.

2. Enzymes are located inside the single membrane-bound peroxisome.

Function: Remove H from different substrates and transfer it to O2, forming H2O2, which is then converted to H2O. metabolizes fatty acids to produce fuel

In the fat-storing tissue of plant seeds are specialized peroxisomes called glyoximes that start the process of converting fat to sugar.

Eukaryotic cells

3. Actin filaments, also known as microfilaments, are protein filaments that make up the cytoskeleton of eukaryotic cells and are found in their cytoplasm. Actin polymers make up the majority of them, but they also interact with and are changed by many other proteins in the cell.

4. Many different responsibilities that the SER plays are frequently highlighted in specific cell types because those roles call for increased SER functionality. The release of glucose from glycogen, calcium storage, drug detoxification, and lipid synthesis are four typical tasks.

Thus, the above given match the column is the right answer.

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The theory of the new corona virus's transfer from bats to people is covered in the explanation that follows.

The severe acute respiratory syndrome coronavirus 2 was produced as a result of cross-species transmission and is the culprit behind COVID19 (SARS-CoV-2). Coronaviruses are a large family of viruses that may infect a variety of hosts.

The host ACE2 protein and TMPRSS2 cleavage of the surface (S) protein are required for SARS-CoV-2 entrance. ACE2, a species-specific barrier, may prevent the bat-to-human coronavirus from spreading across species boundaries. Bats were confirmed as SARS-natural CoV's hosts by a molecular analysis, and they were also linked to the genesis of MERS-CoV.

A novel coronavirus called the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) evolved as the cause of COVID19 as a result of interspecies transmission.

Coroviruses are a large family of viruses that may infect a variety of hosts. For SARS-CoV-2 entrance, the surface (S) protein must interact with the host ACE2 protein and TMPRSS2 must be cleaved.

The species-specific barrier ACE2 may stop the bat-to-human coronavirus from spreading. A molecular analysis established bats as the SARS-natural CoV's hosts and linked them to the establishment of the MERS-CoV. Given the genetic resemblances between the SARS-CoV-2 strain and the bat RaTG13 CoV strain, it is believed that the most recent outbreak was caused by bats.

Compared to the human TMPRSS2 sequence, the pangolin ACE2 amino acid sequence has a greater evolutionary distance from bats and a lower evolutionary distance from humans. When comparing SARS-CoV and SARS-CoV-2 origins, the civet, the main intermediate host of SARS-CoV, has lesser ACE2 evolutionary divergence with humans than pangolin. The pangolin has evolved into an appropriate host for intermediate SARS-CoV-2 leap and entrance from bat to human as a result.

The study of links and evolutionary histories between or among groups of species is known as phylogenetics. These links are inferred using phylogenetic inference methods that focus on heritable traits that can be observed, including DNA sequences, protein amino acid sequences, or morphology.

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If a bacterial species is not susceptible to an antibacterial drug at the concentration present in a particular disk,it does not necessarily mean the species is completely resistant to the drug.

These are chemical compounds which kill or slow down the growth of bacteria through various factors and mechanisms.

Some bacterial species have become susceptible to some antibacterial drug as a result of mutations which occurs during the process of replication  and occurs in the genetic material known as the DNA.

Bacterial species not being susceptible to an antibacterial drug at the concentration present in a particular disk means it is only at that exact point in the DNA which is therefore the reason why it it does not necessarily indicate complete resistance to the drugs.

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Answer: B

Explanation: B is the answer because scientists use modeling for experiments.

1.In actuality, a candle's color has little to no impact on how quickly it burns. In rare situations, candle color can actually make a candle burn hotter, which causes colored candles to burn more quickly.

2.For every 28 g of wax used, smaller candles with smaller wicks will burn for 7 to 9 hours. Wax is consumed more quickly by larger candles with larger wicks. For every 28 g of wax used, the larger wicks can be anticipated to produce 5 to 7 hours (420 minutes).

3.A candle burns down to a smaller amount of wax than it did at the beginning. This is due to the wax's oxidation, or burning, in the flame, which results in the release of water and carbon dioxide, which dissipate in the surrounding air and produce light and heat. Thus height decreases.

The variable that the experimenter willfully modifies or manipulates is known as an independent variable. The cause, input, or action during the process is the independent variable.

The variable that alters as a result of the changes in the dependent

Independent element The outcome, or what occurs as a result of the dependent variable. The variable that remains constant and unchanging throughout the process is known as a control or constant variable.

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