In 1990, scientists at the National Institutes of Health used gene therapy to try to treat a 4-year-old girl suffering from severe combined immunodeficiency disease (SCID). This genetic disease made her extremely susceptible to infections. The scientists used a virus to inject normal genes into the girl's immune system cells. The experiment was moderately successful, and the girl's health improved but only for short periods of time. If this form of gene therapy could be fine-tuned, how would it impact society? A. People would need to be genetically tested before having children together. B. Many genetic diseases would be curable. C. The number of infections from genetically-engineered viruses would increase. D. Most Americans would no longer suffer from heart disease.

Assuming A.L,

Which of the following describes a medical drug?

A) A bacterium that causes a human disease

B) A virus that is passed from person to person

C) A physiological symptom related to a sickness

D) A chemical substance used to treat disease

The correct answer is D) A chemical substance used to treat disease.

A chemical substance used to treat disease.

A medicine (also called medicament, medicinal drug, pharmaceutical drug, remedy, or definitely drug) is a drug used to diagnose, remedy, deal with, or prevent sickness.

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Final answer:

Prevailing winds affect precipitation patterns by carrying moisture from oceans to continents, where it can condense and fall as precipitation. Seasonal shifts in wind and pressure systems, and geographic features like mountain ranges, also contribute to these patterns.

Explanation:

Prevailing winds play a significant role in shaping the precipitation patterns in a region. These winds can carry moisture from the oceans and release it as precipitation upon encountering landforms such as mountain ranges. Regions influenced by winds flowing from warm oceans, such as the westerlies in California, can receive rainfall due to the air's ability to pick up moisture over the water and then cool and condense over land. Moreover, seasonal variations in global pressure systems driven by Earth's heating cause shifts in precipitation, as can be seen with the Intertropical Convergence Zone (ITCZ) and the monsoon effects in Asia. The local precipitation effects, such as the lake-effect precipitation or the drought conditions linked to the subtropical high, further demonstrate the intricate relationship between prevailing winds and precipitation.

Answer: The Genotypic Ratio describes that the number of times a genotype would appear in offspring after a test cross. Take this for example. A test cross that is between two organisms with the SAME Genotype, Rr, for a Heterozygous dominant trait, it will result in the offspring with the Genotypes...RR, Rr, & rr. This is also a ratio that of all possible gene combos that are all based on the alleles, they are contributed with their parents. We don't really often see this Genotypic ration when we look at an organism, we only see the results of its affects.

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Answer:

150,000cm^3, or 1,500m^3

Explanation:

The question is basically asking the volume of this rectangular tank.

The formula to find the volume is length x width x height.

This is because we're trying to find the area of the base (length x width), and then we're multiplying the base times the height, to get how much of the base area can fit in the height of the rectangle.

So, the answer is 100cm x 50cm x 30cm = 150,000cm^3, or 1,500m^3, because 1 meter = 100 centimeters.

The invention of microscope allowed scientists to discover cells.

As a microscope we call an instrument that is used for the observation of objects too small (such as cells) to be seen with the naked eye.

The microscope is an optical instrument that increases the capacity of observation to levels of close-up such that it even makes possible the analysis of particles.

Therefore, we can conclude that the invention of microscope allowed scientists to discover cells.

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Isabelle is trying to answer the question: how does the hair of both herself and her dog grow over the course of three weeks after shaving a 1 x 2-inch patch?

Isabelle is trying to answer the question: how does the hair of both herself and her dog grow over the course of three weeks after shaving a 1 x 2-inch patch? By measuring the hair growth every day, Isabelle can observe how much the hair has grown and analyze any differences in growth between her and her dog. This experiment can provide insights into the hair growth cycle and factors that affect it.

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Isabelle's experiment involves studying the effect of species on hair growth. Key variables include the species as the independent variable and hair growth as the dependent variable.

Isabelle's experiment on hair growth involves multiple factors that need to be classified correctly:

The effect of species on hair growth can be studied by shaving patches of hair from both humans and dogs, measuring the growth over three weeks, and accounting for various controlled and extraneous variables.

Complete question: Match with appropi]riate classifications: Isabelle decides to shave a 1 x 2-inch patch of her hair and the same-sized patch of her dog's hair. She then measures the growth every day for three weeks.
Column A: What is the effect of species on hair growth? Shave patches of her hair and her dog's hair and then measure the growth of hair in those patches with a ruler every day for 3 weeks. The species The length of hair or the amount of growth Size of shaved patch; length of time hair grows The dog might not let her be measured. Different human hairs grow at different rates; this is not accounted for Add a control group; include more subjects, humans and more dogs at the same breed; increase the length of time the experiment is conducted.
Column B: Dependant variable, ways to perform experiment,extraneous varible, things to be done to improve this experiment, problem question, controlled variables, independant variables.

A solid is different than a liquid because of it's "molecules." A solid molecules aren't moving they are compacting and shaking, while liquid molecules are slowly moving around but aren't compacted together. Also solids are different then liquids because of "shape, and size." Solids have a shape while liquids do not just like how size is different also.

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A solid differs from a liquid in terms of their particle arrangement and movement. Solids have closely packed particles in a regular pattern, while liquids have particles that can move past each other and flow.

A solid and a liquid are two states of matter that differ in their particle arrangement and movement. In a solid, the particles are closely packed together in a regular pattern and vibrate but do not move past each other. This allows solids to maintain their shape and volume. On the other hand, liquids have particles that are close together but are not in a regular pattern. These particles can move past each other, allowing liquids to flow and take the shape of their container.

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Answer:

starch

Explanation:

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Plants store extra glucose in the form of starch, a complex carbohydrate. This stored glucose can be broken down when needed for energy, such as at night when photosynthesis cannot occur.

Plants store extra glucose in the form of a molecule called starch. Starch is a complex carbohydrate, made up of many glucose units linked together. Plants make glucose through the process of photosynthesis, but they can't use all the glucose they produce right away.

So, to store this extra glucose for later use, plants will link many glucose molecules together to form starch. This starch can then be broken back down into glucose when the plant needs more energy. For example, at night, when the plant can't perform photosynthesis, it may break down its stored starch into glucose to continue its metabolic functions.

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Answer:

The science is the knowledge of research while technology is the application of scientific research.

Explanation:

The science and technology are the two inseparable things. They are influencing each other. Technology is the application of science. By using technologies many products like different machines, objects are made. Technology helps in making a comfortable life for humans.

On the other hand, science is the knowledge of various fields - nature, physical world, matters. etc. Science is based on research and finding the truth behind any natural phenomena. Then the result of the scientific invention is produced in theory.

This scientific theory helps in developing new technologies. These have a symbiotic relationship. They can not go separately. The microscope was invented due to technical skills, but by using it many biological phenomena were revealed. They always go in a parallel way.

dna molecules have have nitrogenous base pairs that compliment with each other. ex: guanine, adenine, thymine and cytosine. A:T, G:C. since each has a pair, they form a ladder as the dna molecule develops. this is why it's similar to the shape of a spiral staircase. hope i helped ^__^

The DNA molecule's double helix shape is compared to a spiral staircase, with two polynucleotide chains forming the edges and complementary bases forming steps through hydrogen bonds.

The structure of a DNA molecule is often compared to a spiral staircase because of its distinctive double helix shape. This comparison helps visualize how the molecule is constructed. Two polynucleotide chains run antiparallel, forming the outer edges of the staircase, much like the handrails. These chains consist of a backbone made of sugar and phosphate groups. Connecting these backbones are the 'steps' of the staircase, which are actually pairs of complementary bases (adenine with thymine and guanine with cytosine) forming hydrogen bonds between the two strands.

The arrangement of these bases is like the steps of a spiral staircase because they are aligned in a manner that reflects the twisting shape of the double helix. The strong structure not only visually resembles a staircase but is essential for the stability of the DNA molecule, enabling it to carry genetic information effectively.

Answer:

Oyster larvae exhibit a random pattern of distribution (C).

Explanation:

If you look at the values of density in the different sites, you will see that densities are different between sites and that those densities varyied day by day. So, the most suitable distribution is at random.

Larvae exhibit random pattern of  distribution. Thus, option B is correct.

The branch of biology that deals with study of marine life, and organisms in the sea, is called as marine biology. This includes study of all phyla, families, and genera in marine ecosystem.

Ocean is a large ecosystem, where huge proportion of life on earth lives. coastal and open ocean are two types of habitats that found in marine habitat. The area from shoreline to continental shelf is included in coastal habitat. The habitats which are found in deep oceans are called open ocean habitat. Basically, it is environmental conditions and resources are consistent.

So the habitats which have constant environment conditions and abundant resources are suitable for random distribution.

Therefore, option B is correct.

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Sugar molecules make up carbohydrates, amino acids are responsible for protein and fatty acids are makeup lipids or fats.

Sugar molecules are simple carbohydrates called monosaccharides and are structural units of all the carbohydrates by link with one another like a chain. The three important sugar molecules are Glucose, fructose, and galactose provide nutrition.

Amino acids are hundreds or thousands of smaller units that bind with one another in a chain-like structure called a polypeptide chain that is a form of Proteins. There are 20 types of amino acids that link together in a different sequence to form various proteins.

Fatty acids are a straight chain of an even number of carbon atoms, smaller units of lipids or fatty acids that binds in huge number with one another.

All three are the essential for nutrition of organisms, therefore, the correct answer is -carbohydrates, protein, and lipids.

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Final answer:

Sugar molecules, amino acids, and fatty acids all contain carbon, hydrogen, and oxygen. Sugars have a ring structure, amino acids a central carbon with an amino group, carboxyl group, and R group; and fatty acids a carbon chain with a carboxyl group.

Explanation:

Sugar molecules, amino acids, and fatty acids are all vital biological molecules composed of carbon, hydrogen, and oxygen atoms. Sugars like glucose have a ring structure with multiple hydroxyl groups, amino acids have a central carbon atom (alpha carbon) bonded to an amino group (NH₂), a carboxyl group (COOH), a hydrogen atom, and a variable R group which defines the amino acid. Fatty acids are long chains of carbon atoms with a carboxyl group at one end. Each type of molecule plays a crucial role in the structure and function of living organisms.

Fatty acids differ slightly because they aren't linked together in long chains like proteins or polysaccharides, but rather, they are commonly found in groups of three attached to a glycerol molecule to form triglycerides, which are a type of fat.

Bread cell organization is a non-living structure created by yeast cells during the fermentation process when making bread.

Bread cell organization is a non-living structure. Bread is composed of cells, but these cells are not living because the bread itself is a product of cellular organization by yeast. Yeast is a single-celled fungus that undergoes fermentation to produce carbon dioxide gas, which causes bread to rise. Once the fermentation process is complete and the bread is baked, the yeast dies, and the cells become non-living.

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Answer:

false

Explanation:

Answer:

B: an atom

Explanation:

An atom is the smallest substance that can exist in isolation.

Hence, if a piece of copper is continually divided, eventually the smallest particle you would get in an atom.

Final answer:

The purpose of a taxonomic system is to allow for a scientific classification throughout the world.

Explanation:

Taxonomy, sometimes referred to as the Linnaean system, is the science of naming and grouping species to construct an internationally shared classification system.

This system uses a hierarchical model which includes a series of nested groups, akin to directories on a computer, or the organization of a grocery store from departments down to individual products. This hierarchical structure begins with three large categories known as domains: Bacteria, Archaea, and Eukarya, and continues with increasingly specific categories: kingdom, phylum, class, order, family, genus, and species.

Scientists in the field of systematics provide crucial information on how organisms are similar or different, and this contributes to building, updating, and maintaining the "tree of life". As new species and character information are discovered by scientists, these taxonomic trees evolve to reflect more accurate data and to provide a consistent framework for classification across the world.

The purpose of a taxonomic system is to allow for a scientific classification throughout the world.

A taxonomic system is a method by which scientists classify and categorize organisms based on shared characteristics. The term classification refers to the process of arranging organisms into groups or categories based on their similarities and differences. This system enables scientists to organize the vast diversity of life into a hierarchical structure, which includes domains, kingdoms, phyla, classes, orders, families, genera, and species.

The taxonomic system is crucial for several reasons:

1. Identification: It provides a way to identify organisms and assign them to specific groups. This is important for communication among scientists and for keeping track of the world's biodiversity.

2. Understanding Relationships: By classifying organisms, we can understand their evolutionary relationships and how they are related to one another. This can provide insights into the mechanisms of evolution and the history of life on Earth.

3. Scientific Research: Classification helps researchers to focus on specific groups of organisms and understand their unique characteristics, behaviours, and ecological roles.

4. Conservation: It aids in the identification of species that are endangered or in need of protection, which is essential for conservation efforts.

5. Resource Management: Taxonomy is used in the management of natural resources, including agriculture, forestry, and fisheries, by helping to identify and manage pests, beneficial organisms, and economically important species.

6. Global Standardization: A standardized taxonomic system allows for consistency in naming and classifying organisms across different countries and languages, facilitating international collaboration and data sharing in biological research.

The taxonomic system is dynamic and can change as new information becomes available, particularly with advances in molecular biology and genetics that provide new insights into the relationships among organisms.

Answer:

Standard

Explanation:

The purpose of a taxonomic system is to allow for a scientific Standard throughout the world

Hey!

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Answer:

B. Lack of sunlight

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Explanation:

A plant can't grow without sunlight because a plant uses the sun to create food using photosynthesis. Too much water won't hurt the plant. Lithium is absorbed by the plant which is a kind of food it isn't very important if it does contain it. Monosaccharides is a kind of sugar that plants can take as food as well but it isn't as important as the food they receive from photosynthesis.

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Answer:

The unequal sharing of electrons gives the water molecule a slight negative charge near its oxygen atom and a slight positive charge near its hydrogen atoms. When a neutral molecule has a positive area at one end and a negative area at the other, it is a polar molecule.

Explanation:

Final answer:

The water molecule's polarity results from the oxygen atom having a partial negative charge and the hydrogen atoms a partial positive charge, leading to unique properties like hydrogen bonding and high boiling and melting points.

Explanation:

The arrangement of two hydrogen atoms and one oxygen atom in a water molecule leads to a molecular geometry where the hydrogen atoms are on one side and the oxygen atom is on the other. This geometry creates a polar molecule due to the uneven distribution of electronic charge. Oxygen is more electronegative, meaning it has a greater ability to attract electrons towards itself, resulting in a partial negative charge on the oxygen end, while the hydrogen ends hold a partial positive charge.

Because of this separation of charges, the water molecule has a net dipole moment, with the dipole pointing from the hydrogen atoms towards the oxygen atom. This dipole-dipole characteristic gives water its unique properties, such as its ability to dissolve many substances and its high boiling and melting points in comparison to molecules of similar size. Furthermore, the polar nature of water facilitates the formation of hydrogen bonds between adjacent water molecules, which is essential to many of water's characteristics necessary for life.

Answer: rolling friction, air resistance.

Explanation:I just took the test on apex

Answer:

Rolling Friction and Air Resistance

Answer:

Tree

Explanation:

Producers are plants. Mushroom is fungi, not plant

Answer:

Person to person contact, person to item contact, direct transfer and secondary transfer

Explanation:

Final answer:

Locard's Principle of Exchange states that contact between two objects always results in an exchange of materials, which in forensic science is used to link suspects to crime scenes or victims through trace fiber evidence.

Explanation:

Locard's Principle of Exchange is crucial in forensic science. It states that when two objects come into contact, there is always a transfer of material. When relating this to trace fiber evidence, it implies that fibers from a suspect's clothing may be transferred to a victim or crime scene, and vice versa. This trace evidence can be collected and analyzed to establish a connection between individuals and locations involved in a crime. Therefore, just as particle exchange signifies the transfer of elementary particles between entities, the transfer of fibers is evidence of physical contact in a legal context, embodying the principles set forth by Edmond Locard.

Proteins in the human body have diverse functions including structural support, enzyme catalysis, muscle movement, oxygen transport, and immune response. However, their primary function is not to serve as a significant energy source, as proteins are typically not stored or metabolized for energy under normal circumstances.

Proteins in the human body are essential for a multitude of physiological functions. They serve critical roles such as providing structural support, enabling mobility, acting as catalysts in the form of enzymes, and transporting molecules and ions across the body. For example, structural proteins like collagen and keratin provide support to tissues, while contractile proteins in muscles facilitate movement. Hemoglobin, another type of protein, is vital in transporting oxygen from the lungs to the rest of the body. Proteins also play a key role in the immune response as antibodies, detecting and targeting foreign substances like bacteria. Regulatory proteins, including hormones, mediate various bodily functions.

However, one function that proteins do not serve is acting as a primary energy source. Unlike carbohydrates and fats, proteins are not stored for later use to be converted into glucose or triglycerides for energy. Instead, they are metabolized for energy only when other sources are insufficient.

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Answer:

liquid soap is a base

Explanation:

liquid soap is made from a base material in which its pH is more than pH 7 while, lemon jiuce, vinegar are acidic in nature with water as neutral

The correct answer is D. Liquid soap.

The correct answer is D. Liquid soap.

A base is a chemical substance capable of participating in reactions by accepting hydrogen ions (H+) or donating hydroxide ions (OH-). In the context of liquid soap, it often contains compounds such as sodium hydroxide (NaOH) or potassium hydroxide (KOH). These substances have the capacity to act as bases, and their presence in soap formulations allows them to effectively emulsify oils and fats. Consequently, liquid soap can both clean and sanitize surfaces due to the chemical properties of these base compounds, making them valuable components in everyday cleaning and hygiene products.

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Answer:

The answer is C. This means the idea is supported by scientific consensus and a large amount of evidence.

Answer:

The Answer is C

Explanation:

Can you please give me a better idea of what to do?

Answer: A

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Answer:

Option (A)

Explanation:

The layers that creates folding or tilting are found in the sedimentary rocks. These rocks are formed due to the compaction and lithification of sediments. For example, sandstone, shale and mudstone.

This rocks when deposited over one another, it forms layers. These layers are then subjected to folding or tilting due to the compressional stress (tectonic forces).

Before forming the layers, if the rock is subjected to compressional stress, then the sediments will not form layers and there occurs no folding. Whereas it will shatter the rock.

Thus, the correct answer is option (A).

Answer:

The first colorimeter is reliable but not valid

The second colorimeter is valid and reliable

A chemical analysis of the colored solution was done. The readings of the first colorimeter are not the actual readings while the second colorimeter gives the readings same as the actual readings. So statements A and B are the implications of the readings.

Colorimeter is a device that is used to measure the ability of a colored solution to transmit light through it. The concentration of the light-absorbing solute is determined using the colorimeter. When a light beam passes through a colored solution, some part of the incident light is reflected back, some part is absorbed into the solution while some part is transmitted. The colorimeter is sensitive to light and it measures the amount of light that is transmitted and absorbed by the solution.

The colorimeter is based on the principle of absorption of a certain light wavelength by the colored compounds present in the solution.

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Answer:

D. Change in shape

Explanation:

Change in shape is the physical property of the substance. Chemical change of the compound is observed during a chemical reaction. Change in colour, production of the gas, formation of a precipitate are the examples of chemical change and can be sensed easily.

Vapour pressure, boiling point, density and shape are the examples of physical properties of compounds. Chemical change also leads to change in texture of the compound. A compound has both physical and chemical properties and its chemical reaction is enhanced by the catalyst.

Ecosystem services are the flows of benefits which people gain from natural ecosystems

Natural Resources are materials or substances that occur in nature and can be used for economic gain.

Natural resources are physical substances or objects in nature that we find useful in their raw form, like water or minerals. Ecosystem services, on the other hand, are benefits humans directly and indirectly receive from ecosystems, focusing more on the functions that support life and well-being.

The difference between ecosystem services and natural resources largely lies in how they are used and perceived in regard to human benefit. Natural resources refer to substances or objects in nature that humans find useful in its raw form. This includes things like water, soil, minerals, and trees.

On the other hand, ecosystem services refer to the benefits that humans receive from ecosystems directly or indirectly. They are usually categorized into four main types: provisioning services (such as the production of food and water), regulating services (like control of climate and disease), supporting services (like nutrient cycles and crop pollination), and cultural services (such recreational and spiritual benefits).

Therefore, while natural resources focus more on the physical products we can extract and use, ecosystem services place emphasis on the functions of ecosystems that support life and human well-being.

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