how do you get cystic fibrosis

The discovery of the structure of DNA in 1953 changed the scientific understanding of heredity, as it revealed that DNA was the molecule responsible for genetic information.

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Answer:

Explanation:fluids are released from the rock causing the overlying mantle to partially melt

which cause new magma

Fluids released from the rock cause the mantle above to partially melt as the sinking plate descends deeper into the mantle.

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The volume of the object placed in the water is 7.2mL.

Volume in chemistry refers to a physical quantity that measures the amount of three-dimensional space occupied by matter (solid, liquid, or gas).

According to this question, a beaker contains 50.5 mL of water and the water level rises to 57.7 mL when an object is added to the water.

The volume of the object placed in the beaker of water can be calculated as follows:

Volume of object = volume of water rise - volume of beaker initially

Volume of object = 57.7mL - 50.5mL = 7.2mL

Therefore, 7.2mL is the volume of the object.

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The volume of the object would be 7.20 mL.

According to the floatation principle, a floating or sinking object will always displace its own volume from the liquid on which it floats or sinks.

Following this rule, the volume of the object in the illustration can be determined as follows:

Volume of water in the beaker before adding the object (A) = 50.5 mL

Volume of water in the beaker after adding the object (B) = 57.7 mL

Volume of object = B - A

                             = 57.7 - 50.5

                             = 7.20 mL

In other words, the volume of the object would be 7.20 mL.

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Answer:

Viruses can enter the plant through the roots, the stem, or through the leaves.

Explanation:

Answer:

Explanation:

Nuclear division is the process of dividing the nucleus. Nuclear division is the process through which the nucleus of a cell splits, producing two daughter nuclei, each with a full set of chromosomes. Mitosis and meiosis are the two basic kinds of nuclear division.

A mitosis is a form of nuclear division that happens in somatic cells and is crucial for tissue development and repair. Mitosis occurs when the nucleus' chromosomes are duplicated, and the cell splits into two identical daughter cells, each with the same number of chromosomes as the parent cell.

Meiosis is a type of nuclear division that happens in reproductive cells and is responsible for sperm and egg cell production. The nucleus' chromosomes are duplicated during meiosis, and the cell divides into four non-identical daughter cells, each having half the number of chromosomes as the parent cell.

Mitosis and meiosis are both required for living creatures to grow, repair, and reproduce.

Just about every type of waterfall usually has cascades shortly upstream or downstream from it.

A waterfall is a point in a river or stream where water flows over a vertical drop or a series of steep drops. Waterfalls also occur where meltwater drops over the edge of a tabular iceberg or ice shelf.

The advantages of waterfall development are that it allows for departmentalization and control. A schedule can be set with deadlines for each stage of development and a product can proceed through the development process model phases one by one.

So without waterfalls and their purification of water, we would have no fish to eat, and other animals that live in water would die which would affect the Eco system. Waterfalls also help in turning waste that runs in the water into nutrients which help plants to grow.

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Approximately, distance is 150ft. Hence option (B) 150 ft, is correct answer.

The distance a rock has fallen after 3.5 seconds can be determined using the equation for calculating the distance an object has fallen under the force of gravity.

This equation is d = 1/2*gt2, where d is the distance, g is the acceleration of gravity (9.8m/s2), and t is the time (3.5 seconds). Plugging in these values, the distance d is equal to 242.5 ft.

Therefore, the rock has fallen approximately 150 ft after 3.5 seconds.

The distance a rock will fall in 3.5 seconds depends on its initial velocity and the acceleration due to gravity.

Assuming the initial velocity is zero, the rock will be accelerating at a rate of 32 ft/s2 due to gravity.

Therefore, the distance the rock has fallen after 3.5 seconds can be calculated using the equation d = 1/2at2.

Substituting a = 32 ft/s2 and t = 3.5 s into the equation yields a distance of 150 ft. In conclusion, the rock has fallen approximately 150 ft in 3.5 seconds.

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Ethanol is the substance that are gas at 70 c.

Ethanol is an organic compound. It is an alcohol with the chemical formula C₂H₆O. Its formula can be also written as CH₃−CH₂−OH or C₂H₅OH. Ethanol is a volatile, flammable, colorless liquid with a characteristic wine-like odor and pungent taste.

Ethanol is present in alcoholic drinks (beer, wine, spirits) when diluted. It is used as a topical agent to prevent skin infections, in pharmaceutical preparations (e.g. rubbing compounds, lotions, tonics, colognes), cosmetics, and in perfumes.

The only type of alcohol that humans can safely drink is ethanol. We use the other two types of alcohol for cleaning and manufacturing, not for making drinks. For example, methanol (or methyl alcohol) is a component in fuel for cars and boats.

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When comparing two organisms of similar shape, large size organism will retain more heat in a cold environment.

In biology, an organism is any living system that functions as an individual entity. All organisms are composed of cells. The idea of organism is based on the concept of minimal functional unit of life.

Organisms are classified by taxonomy into groups such as multicellular animals, plants, and fungi; or unicellular microorganisms such as protists, bacteria, and archaea.

An organism is a living being that has a cellular structure and that can independently perform all physiologic functions necessary for life. In multicellular organisms, including humans, all cells, tissues, organs, and organ systems of the body work together to maintain the life and health of the organism.

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The solution of the above simultaneous equation is x= 2, y = 10.

A simultaneous equation in mathematics is a finite set of equations whose common solutions are sought.

According to this question, two algebraic equations are given as follows:

2x + 3y = 34 ........eqn 1

y = 5x ......... eqn 2

First, we substitute 'y' in equation 2 into equation 1 as follows:

2x + 3(5x) = 34

2x + 15x = 34

17x = 34

x = 2

Since y = 5x, y = 5(2) = 10

Therefore, variable x = 2, while y = 10.

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Answer: B

Explanation:

Our bodies cannot produce Omega-3, unlike other fats. Instead, we have to consume food containing it.

Omega-3 fatty acids is considered an essential nutrient.

An essential nutrient is a nutrient required for normal body function that either cannot be made by the body or cannot be made in amounts adequate for good health and therefore must be provided by the diet.

Essential nutrients cannot be synthesized by the human body, so they must be consumed in food. These nutrients must be obtained from the foods you eat; your body cannot make them on its own.

There are six basic nutrients: carbohydrates, proteins, fats, vitamins, minerals, and water. All of these are classified as essential. Your body requires essential nutrients to function properly.

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Answer:

a. y + 8 = -5(x-2)

Explanation:

You're in the wrong neck of the woods for math questions, regardless, point slope form is y - y₁ = m(x-x₁), just plug in your numbers

Lime is a soil conditioner and controls the soil acidity by neutralising the effects of acids from nitrogen (N) fertiliser, slurry and high rainfall. Other benefits include an increase in earthworm activity, improvement in soil structure and grass is more palatable to livestock

Answer:

It is important to add lime to your pastor immediately after growing season and crop removal, so the lime can react to the soils ph before the next growing season, so that the soil can be filled with healthy bacteria, encouraging plant health, as well as earthworms to be active and fertilize the soil.

Explanation:

Hope it helps! =D

Answer:

The heat from the sun makes the water molecules move faster and faster, until they move so fast they escape as a gas. Once evaporated, a molecule of water vapor spends about ten days in the air.

An experiment to show that roots hold plants to the soil.

What do you mean by Experiment?

An experiment is an organized procedure that is carried out to test a hypothesis, examine an issue, or explore a subject. It provide insight into cause-and-effect by demonstrating what outcome occurs when a particular factor is manipulated. Experiments vary greatly in goal and scale, but always rely on repeatable procedure and logical analysis of the results.

Materials:

-2 potted plants of the same species

-Potting soil

-Gardening gloves

-Garden trowel

-Tape measure

Procedure:

1. Put on the gardening gloves.

2. Take the two potted plants and measure the length of the roots from both plants using the tape measure.

3. Take the first plant and carefully remove it from its pot.

4. With the garden trowel, carefully loosen the soil around the plant’s roots.

5. Gently pull on the plant to remove it from the soil.

6. Measure the length of the roots that are still in the soil.

7. Repeat steps 3-6 with the second plant.

8. Compare the lengths of the roots from both plants.

Results:

The roots from the first plant should be significantly longer than the roots from the second plant, indicating that the roots are holding the plant firmly in place in the soil.

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Energy sources for living things.

Carbohydrates and lipids are both sources of energy for living beings. Carbohydrates are frequently composed of bound glucose molecules that may be broken down by cells to generate energy for usage by the body. Lipids are insoluble in water and can be stored in organisms as fats.

Carbs and lipids may both be used to store energy, although carbohydrates are often utilized for short-term storage while lipids are used for long-term storage. Unlike lipids, carbohydrates are soluble in water. This facilitates the delivery of carbs throughout the body (from and to the store).

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Answer:

C

Explanation:

A plethora of crucial data about perceptions of the police and criminal behaviour may be found in the Crime Statistics Survey victimisation statistics.

Physical Battery/Assault – Physical battery or assault is not permitted. It is to touch, strike, or threaten to use violence against someone who doesn't want it. Violence in relationships and in the home – These behaviours are forbidden.

Casarez-Levison (1992) described victimisation as a procedure where a person transitions from an or before nation (previctimization), to the actual crime event (victimisation), to initial having to cope and modification (transition), and eventually to a state in which being a victim of crime is just a part of one's experience of life (Resolution).

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A plethora of crucial data about perceptions of the police and criminal behaviour may be found in the Crime Statistics Survey victimisation statistics.

Physical Battery/Assault – Physical battery or assault is not permitted. It is to touch, strike, or threaten to use violence against someone who doesn't want it. Violence in relationships and in the home – These behaviours are forbidden.

Casarez-Levison (1992) described victimisation as a procedure where a person transitions from an or before nation (previctimization), to the actual crime event (victimisation), to initial having to cope and modification (transition), and eventually to a state in which being a victim of crime is just a part of one's experience of life (Resolution).

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Answer:

Molecules of life refer to the various chemical compounds that are essential for the existence and functioning of living organisms. These molecules include carbohydrates, lipids, nucleic acids, and proteins.

Carbohydrates are a group of compounds made up of carbon, hydrogen, and oxygen atoms. They serve as a primary source of energy for living organisms and are found in foods such as sugars, starches, and fibers. Lipids are a diverse group of compounds that are insoluble in water but soluble in nonpolar solvents. They include fats, waxes, and oils and are important for energy storage and cell membrane structure.

Nucleic acids, such as DNA and RNA, store and transmit genetic information. DNA, or deoxyribonucleic acid, is the genetic material that carries the instructions for the development and function of all living organisms. RNA, or ribonucleic acid, helps to translate the genetic information stored in DNA into proteins.

Proteins are large, complex molecules made up of smaller units called amino acids. They play many important roles in the body, including structural support, enzyme function, and cell signaling. Proteins are also responsible for the regulation of metabolic processes, movement, and the immune response.

In summary, molecules of life are the essential chemical compounds that are vital for the existence and functioning of living organisms. They include carbohydrates, lipids, nucleic acids, and proteins, which play diverse roles in the body such as energy storage, genetic information storage and transmission, structural support and cell signaling.

Genetic counselors know that the other somatic cells will have the same condition as the one seen in the karyotype because all somatic cells in an organism have the same set of chromosomes, which are replicated during cell division.

A karyotype is a visual representation of the complete set of chromosomes in a single cell of an organism. It is typically arranged in pairs, with the chromosomes lined up in a specific order based on their size and shape.

Karyotypes are used to identify chromosomal abnormalities, such as missing or extra chromosomes, and to diagnose genetic disorders. They can be created by staining a cell and then photographing it under a microscope.

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The same period of time saw the existence of both Organism Y and Organism U. The correct option is C.

Any surviving remains, impression, or evidence of a once-living thing from a previous geological epoch is referred to as a fossil. Examples include animal or microbial imprints on stone, bones, shells, exoskeletons, and more.

Rock layers and the associated fossils are older than the layers above them, according to the Law of Superposition. If you look at your list, layer 4 of the rock contains the oldest fossils and becomes younger as it rises.

The oldest fossils are found in rock layer 4, which makes them Y and U. Because you cannot find them in any other rock layer, it can be assumed that they were extinct at the time the other strata developed.

Thus, the correct option is C.

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Your question seems incomplete, the missing options are:

Organism W existed much before Organism Y.

Organism Y existed over the longest period of time.

Organism Y and Organism U were alive over the same time span.

Organism W existed over a shorter period of time than Organism X.

The use of synthetic fertilizers leads to the breaking down of chemicals and nitrous oxide production

What is the impact of nitrous oxide?

Nitrous oxide (N2O) is a powerful greenhouse gas with a global warming potential of 298 times that of carbon dioxide (CO2) over a 100-year period. It is primarily released into the atmosphere from agricultural activities, such as the intensive use of fertilizers, and from fossil fuel combustion. Its emissions are on the rise, and it is a significant contributor to global warming. In addition to its role in global warming, nitrous oxide also contributes to acid rain and the depletion of stratospheric ozone. It also contributes to smog and other forms of air pollution.

The use of synthetic fertilizers leads to the breaking down of chemicals and nitrous oxide production. Synthetic fertilizers contain nitrogen and phosphorus, which can be broken down by bacteria in soil to release nitrates. These nitrates can then be further broken down by nitrifying bacteria to form nitrous oxide, a greenhouse gas.

Therefore, the use of synthetic fertilizers is the correct answer.

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Answer:

Natural sources of CO2 in the atmosphere include respiration from animals, decomposition of organic matter, and volcanic eruptions. Anthropogenic sources of CO2 in the atmosphere include burning of fossil fuels, deforestation, and agricultural activities.

Explanation:

Answer:

The law of conservation of matter states that the matter can be neither created nor destroyed.

Explanation:

Your friend shows you the following chemical equation CACO3CAO plus CO2 he says that because the oxygen atoms are split between two different molecules in the products the equation does not support the law of conservation of matter is your friend write explain your answer draw a model showing the number of each type of atom in the reactants and products use your model explain your answer.

Both carbon and nitrogen cycle are kinds of biogeochemical cycles and they release elements from their cycles.

Carbon and Nitrogen both cycle types of biogeochemical cycles and try to free up elements present in their cycles. The carbon cycle releases carbon, and the nitrogen cycle releases nitrogen into the atmosphere. The process starts with gas and also ends in a gaseous state in both cycles.

The carbon, nitrogen, and oxygen cycles are the same in their according elements such as atoms of carbon, nitrogen, and oxygen, etc are neither created nor destroyed. They are similar because they are all connected through the makeup of life forms.

so we can conclude that both have biogeochemical cycles.

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Answer:

what is tardigrade? known colloquially as water bears or moss piglets, are a phylum of eight-legged segmented micro-animals.

Tardigrades pose no threat to humans. Scientists have yet to identify a species of tardigrade that spreads disease.

Answer: Sorry i just needed the points thx

Explanation:im so sorry about this

Answer:

01) Best methods:

Crop rotation

Companion planting

Intercropping

Cover cropping

Natural predators (e.g. ladybugs)

Biological pest control (e.g. using parasitic wasps)

Proper irrigation and soil management

Handpicking and removing of pests

Proper storage of harvested crops

02)Greatest infestation cause:

Monoculture (growing the same crop in the same area repeatedly)

Lack of crop rotation

Overuse of chemical pesticides

Poor soil health

Poor crop storage practices

Lack of natural predators in the environment.

Classification is defined as placing and arranging the known species into different groups or taxa according to similarities and dissimilarities.

What is broadcast groups?

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Classification is defined as placing and arranging the known species into different groups or taxa according to similarities and dissimilarities.

Broadcast groups are a special type of public, private, or unlisted group where only group owners and managers can post to the group. Group members can read posts and comment on them.

Four standards for digital radio systems exist worldwide: IBOC (In-Band On-Channel), DAB (Digital Audio Broadcasting), ISDB-TSB (Integrated Services Digital Broadcasting-Terrestrial Sound Broadcasting), and DRM (Digital Radio Mondiale)

The two types of broadcast media are video and audio. Video uses images and is popular means of communicating on television and the internet. Audio is a verbal account and is used on radio, television, and the internet.

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Light microscopes are the most common type of microscope and use visible light to magnify an image.

Distinguish between the different kinds of microscopes?

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