High population densities in urban areas have advantages and disadvantages. List as many of each as you can and defend your conclusion. How could the disadvantages be eliminated or reduced? Use evidence to support your conclusion.

Explanation:

1.Warmer in the winter – Double glazing is great for insulation, it can also help capture natural heat and store it in the winter. This is a great way of keeping your home insulated in the winter months.

Energy cost savings – Less energy is used up to heat or cool a room when double glazed windows are installed, this results in lower energy bills and money being saved. Adding more layers of glazing will increase the insulation levels and save more money.

Cooler in the summer – Double glazed windows can trap some of the rays coming through the windows on a hot summer’s’ day causing your room to be cooler. This means less air-conditioning is required.

Safety – With more units being on double glazed windows, the safety of your home increases. They are harder to break and are sealed tighter than other windows.

Less condensation – Double glazed windows reduce the amount of moisture on your window panes, as the airtight seal prevents the condensation from building up. Other windows often allow condensation to build up which causes window panes to have mould in.

Less noise – With more units comes less noise and a quieter home. If you live by busy roads or in a generally noisy area then double glazed windows are crucial to you

the second answer is photograph

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Answer:

D

Explanation:

Undigested food is not transported by the human circulatory system. Hence, option D is correct.

The system which contains the heart, blood vessels, and blood is called the circulatory system. There are three types of circulation that take place in the body and that is systemic, coronary, and pulmonary circulation.

The heart is a muscular organ, that pumps blood in the body. Blood vessels carry blood from the heart to tissues or tissues to the heart. Blood is a fluid, which flows inside the blood vessels.

The main function of this system is to transport water, nutrients, digested food, oxygen, carbon-di-oxide, minerals, and excretory products in the entire body through blood. It does not transport undigested food. Hence, option D is correct.

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The biomass would be different because aquatic plants are producers while bluegill fishes are consumers.

In a food chain or food web, the biomass of the population of organisms at the lower trophic levels is usually more than that at the higher trophic level.

Thus, producers tend to have more biomass than primary consumers. Primary consumers tend to have more biomass than secondary consumers.

In the same vein, secondary consumers have more biomass than tertiary consumers.

Bluegill fishes are consumers while aquatic plants are producers. Thus the biomass of aquatic plants would be more than that of bluegill fish.

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The  components of the CNS are the brain and spinal cord.

It is the most important organ of the nervous system. Considered the most voluminous organ, as it occupies most of the brain, the brain is divided into two symmetrical parts: the right hemisphere and the left hemisphere.

The central nervous system is made up of two basic parts: the brain and the spinal cord. The brain is contained within the braincase, and the spinal cord is contained within the vertebral column, in the vertebral canal.

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The statement that best describes eruption is the gases are released in rapid bursts. That is option C.

A volcanic eruption is defined as the rapid release of the earth crust contents which contain gases, lava and ash.

These are formed when the tectonic plates move over each other in the earth crust.

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Answer:

c

Explanation:

The oldest oceanic crust is found at the mid-ocean ridges. Thus, option "A" is correct.

The ocean crust is about younger than 200 million years (for example, smaller than 5% of the age of the earth).

The crust is most naive (still being created by volcanic eruptions) along the axis of the mid-ocean ridges and increases in age down the sides of the mid-ocean rises and out onto the more serious basin floors.

Thus, option "A" is correct.

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Answer:

A) Nucleic acids are necessary for life as they store genetic information in the form of DNA. Hope it helps!

Nucleic acids are the substances that are necessary for life. The correct option is A.

Biopolymers and macromolecules called nucleic acids are necessary for all known species of life.

They are constructed of subunits called nucleotides, which are composed of a nitrogenous base, a phosphate group, and a 5-carbon sugar. Deoxyribonucleic acid and ribonucleic acid are the two primary classes of nucleic acids.

Natural chemical substances called nucleic acids are the main information-transporting molecules in organisms. They are particularly crucial in controlling protein synthesis. Deoxyribonucleic acid (DNA) and ribonucleic acid (RNA) are the two primary types of nucleic acids.

The preservation and expression of genetic data is a key role of nucleic acids. The information cells require to build proteins is encoded in deoxyribonucleic acid, or DNA.

Thus, the correct option is A.

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What organism is responsible for the flu?

How the flu virus enters the person's body?

What is the effect of this virus on person's health?

When the flu occurs to the person?

The above are the four scientific questions that a researcher needs to prevent this flu from infecting people. With the help of these questions, the researcher know about the organism that caused this disease, entry of the virus and effect on the body.

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Simplexviruses establish latent infections of nerve cells.

Herpes Simplex viruses are viruses that are ubiquitous and causes wide range of diseases.

They are of two types;

Simplex viruses causes or establishes latency in trigeminal ganglia sensory neurons in individuals.

Therefore, simplexviruses establish latent infections of nerve cells.

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Answer:

Polarization and depolarization

Explanation:

The transfer of signal happens by the exchange of sodium and potassium ions in and out of the cell membrane of neuron.

Answer:

corpus callosum.

..............

Answer:

Corpus callosum

Explanation:

Actually, the left and right brain hemispheres may communicate with one another because to a thick bundle of nerves called the corpus callosum (Latin for "difficult body"). The corpus callosum, which is divided into several sub regions, connects various sections of the hemispheres. The corpus callosum is subdivided into the rostrum, genu, body, and splenium from anterior (front) to posterior (back). The brain's left and right frontal lobes are linked by the rostrum and genu. The hemispheres of the temporal and occipital lobes are connected by the body and spleen.  

With over 200 million axons, the corpus callosum is the brain's biggest fiber bundle. It is made up of tracts of white matter fibers called commissural fibers. It has a role in several bodily processes, including the communication between the:

The different parts of our visual field, which independently process pictures in each hemisphere, are combined by the corpus callosum, which plays a crucial role in vision. By connecting the language centers of the brain with the visual cortex, it also enables us to recognize the objects we view. In order for humans to find touch, the corpus callosum also transmits tactile information—which is processed in the parietal lobes—between the two hemispheres of the brain.

bro....1 answer is enough

The metabolic event that best explains the situation whereby there is a burning sensation in the working muscles is lactic acid fermentation.

Lactic acid fermentation is the process whereby sugar is converted to lactic acid in the presence of certain enzyme.

According to this question, certain athletic training routines is usually accompanied by a burning sensation in the working muscles and a drop of pH in the muscle tissue.

This is caused by the low supply of oxygen to the muscle cells, hence, they switch to anaerobic respiration (lactic acid fermentation) that causes the synthesis and buildup of lactic acid in the muscle.

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According to the tree, chimpanzees and bonobos are the most common recent ancestor with humans.

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Bone marrow transplant is the alternate way that destroy marrow can resume production of blood cells.

A bone marrow transplant, is the treatment and an alternate way that destroy marrow can resume production of blood cells. If a donor is found, your diseased bone marrow is depleted with radiation or chemotherapy and the new bone marrow is transplanted.

So we can conclude that bone marrow transplant is the alternate way that destroy marrow can resume production of blood cells.

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Photosynthesis, Decomposition, Respiration and Combustion are the processes involved in the carbon cycle.

The processes that are involved in carbon cycle are Photosynthesis, Decomposition, Respiration and Combustion. Photosynthesis occurs only in plants whereas respiration occurs in all organisms.

Decomposition done by bacteria and fungi on the dead bodies of organisms whereas combustion occurs when the a material is burnt.

So we can conclude that Photosynthesis, Decomposition, Respiration and Combustion are the processes involved in the carbon cycle.

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The labels to correctly identify each process is

This is further explained below.

The process through which carbon atoms constantly go from the atmosphere to the surface of the earth and again back into the atmosphere is referred to as the carbon cycle.

Generally, Photosynthesis  is simply defined as photosynthesis is the green pigment and other creatures create nutrition from carbon dioxide and water using sunlight

In conclusion, To put it another way: photosynthesis (by the patch of grass) breathing in animals (on top of the bull) Taking a breath (on top of the tree) using up precious fossil fuels (on top of the factory) just burning up in the atmosphere (by the small fire)

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Answer:

Diffusion is the process in which molecules and ions move from a region of high concentration to low concentration. Its also how cells transport waste out of the cell and nutrients into it hence being very crucial. Diffusion also occurs without the expenditure of extra energy using a procedure known as passive transport. (Osmosis is a form of diffusion but deals with water exclusively).

Examples of where diffusion is important;

In the intestines - Digested food molecules such as amino acids and glucose move down the concentration gradient from the intestine into the bloodstream. Wastes such as carbon dioxide or urea travel via diffusion from the body's cells to the bloodstream.

Osmosis plays a major role in living organisms. It aids in the transportation of nutrients from cells to cells and also helps to remove the waste's metabolic products from the cell. The purification of blood in the kidneys is also dependent on the process of osmosis.

Answer:

The intraluminal pH is rapidly changed from highly acid in the stomach to about pH 6 in the duodenum. The pH gradually increases in the small intestine from pH 6 to about pH 7.4 in the terminal ileum. The pH drops to 5.7 in the caecum, but again gradually increases, reaching pH 6.7 in the rectum.

The pH of the stomach is acidic while that of small intestine is slightly alkaline.

This is referred to as the power of hydrogen and is the measure of the degree of acidity or alkalinity of a substance.

The stomach contains dil. Hcl which makes it acidic while the small intestine is alkaline because of the presence of bile.

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A very large refrigerant leak can cause suffocation because they are heavier than air and displace oxygen.

A dangerous illness called refrigerant poisoning can include coughing, headaches, nausea, vomiting, and skin and eye irritation because they are heavier than air and displace oxygen.. Untreated poisoning can result in a number of life-threatening conditions, including the following:

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The characteristics of allosteric enzymes are regulatory molecules can bind and modify the catalytic activity of these enzymes.

Enzymes are proteins that catalyze chemical reactions that occur in living things. They speed up the speed of reactions, which contributes to metabolism. Without enzymes, many reactions would be extremely slow. During the reaction, the enzymes do not change their composition and are not consumed either.

In this case, Allosteric enzymes are enzymes that contain a region separate from the substrate to which small regulatory molecules can bind and modify the catalytic activity of these enzymes.

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Answer:

Most of the Earth's water vapor is in the Troposphere. Approx. 99.13%

Explanation:

The troposphere is where most clouds and weather form over the Earth.

Answer:

I think that it is mate selection though not sure

The fossil record is the type of evidence that is used with molecular clocks to estimate the split from a common ancestor.

A molecular clock is an estimation of the times of divergence used for the study of biological phenomena.

Molecular clocks are based on fossils found for a given species and the mutation rate of a given genomic sequence.

In conclusion, fossils are used as point of reference to build molecular clocks based on the mutation rate of homo-logous nucleotide sequences for a given taxonomic group for which these fossils belong.

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Continuously facing towards the east also helps the flowers to heat up quickly. This gives them an advantage in pollination, as warm flowers attract insects. Therefore, in the plant's interest, the flower always faces the sun and is therefore always clearly visible to these important pollinators.

This property of facing the sun is mostly observed in young flowerheads and generally stops once the flower starts to mature. The phenomenon of flowers following the sun across the sky is called heliotropism.

The obvious reason for the flower following the sun would be to maximize photosynthesis.

Each sunflower plant has only one flower on its stem. Therefore, during pollination, the plant’s only means of reproducing must get noticed by pollinators. [A pollinator is anything that helps carry pollen from the male part of the flower to the female part of the same or another flower. The movement of pollen must occur for the plant to become fertilized and produce fruits, seeds, and young plants.] Continuously facing towards the east also helps the flowers to heat up quickly.

This gives them an advantage in pollination, as warm flowers attract insects. Therefore, in the plant’s interest, the flower always faces the sun and is therefore always clearly visible to these important pollinators.

When researchers compared mature flowers facing east with flowers that they had turned to face west, they made a remarkable observation. East-facing blooms attracted five times as many pollinating insects as west-facing ones. Sunflower has a clear advantage in terms of reproduction if it faces the sun.

- It is mainly young flower heads that exhibit this characteristic of heliotropism because younger flowers have green “bracts” that look like a mane.

- As sunflowers mature, this process comes to a halt. Overall growth slows, and the flower's circadian clock reacts most intensely to the sun's early morning rays than those later in the day. As a result, the blooms gradually stop tracking westward altogether.

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In case of poor economic conditions increase demands for materials and harm the health of marine ecosystems. The correct option is A.

Marine ecosystems are aquatic environments with high dissolved salt levels.

These include the open ocean, the deep sea, and coastal marine ecosystems, each with its own set of physical and biological characteristics.

If the economy suffers, the resources needed to improve the health of marine ecosystems will be unavailable.

Thus, the correct option is A.

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The death rate must balance with the birth rate while immigration and emigration must also balance.

An equilibrium is established in a population when the population neither decreases nor increases.

In order for this to happen, the number of deaths and births must be equal. In addition, the number of new individuals coming into the population must also be equal to the number of individuals leaving the population.

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If Alpa wants to change 0.54 kilometers into a smaller metric unit, she will be required to multiply.

A Metric unit may be defined as a technique of measurement in which the basic units are the meter, the second, and the kilogram. These units are interchanged with one another by using several formulas of conversion.

The complete question is as follows:

Alpha wants to change 0.54 kilometers into a smaller metric unit. She will have to:

Therefore, If Alpa wants to change 0.54 kilometers into a smaller metric unit, she will be required to multiply.

For example, In case, if she wants to convert 0.54 into meters, then she has to multiply it by 1000, that is, 0.54 * 1000 = 540 meters.

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