PLEASE Helppppppp Its science but there is no science subject so I put it as Biology OwO

To run an agarose gel electrophoresis of a  DNA sample of approximately 600 base pairs, you should prepare a gel with a 1-2% agarose concentration.

The percentage of agarose directly affects the pore size within the gel matrix. A higher percentage will create smaller pores, while a lower percentage will create larger pores. For a 600 base pair DNA fragment, a 1-2% agarose gel would provide the optimal balance between resolution and migration speed.

A 1-2% agarose gel will allow the 600 base pair fragment to migrate through the pores at a reasonable speed while still providing good resolution between bands. If the agarose concentration is too high, the DNA fragment will migrate slowly and may not separate effectively. Conversely, if the agarose concentration is too low, the DNA fragment may migrate too quickly, leading to a loss of resolution.

Thus, for a 600 base pair DNA sample, preparing a gel with a 1-2% agarose concentration is ideal to achieve a balance between resolution and migration speed, ensuring accurate and efficient separation of DNA fragments.

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Answer:

number 5 is d I'm sure because commensalism means they both getting something in returne

Answer:

B

Ovulation happens about 14 days before your period starts. If your average menstrual cycle is 28 days, you ovulate around day 14, and your most fertile days are days 12, 13 and 14

Answer:

daughter' cells that contain abnormal DNA or even abnormal numbers of chromosomes.

Explanation:

According to the research, the correct answer is Option B, C and E. Besides removing waste products from the bloodstream, the urinary system performs excretion of urine, regulation of blood volume and regulation of ion balance.

It is the system in charge of filtering and eliminating substances through the urine, which if they were retained, could produce unwanted effects.

In this sense, the function of concentrating or diluting urine is exercised, to maintain the amount of water that our body needs to function and eliminates minerals (sodium, potassium, calcium, phosphorus, magnesium), which are necessary for us to develop our activities.

Therefore, we can conclude that according to the research, the urinary system is in charge of the excretion of urine, mineral salts and regulation of blood volume, eliminating waste substances that have entered the blood.

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Reduction of carbon in the atmosphere

Plants consume carbon dioxide (CO2) in the process of photosynthesis as a substrate to form their food, i.e, sugars such as glucose, following the formula:

6 CO2 + 6 H2O + light --

A Minerva brace is fitted to stabilize the fractures or dislocations in the upper cervical spine.

This type of brace can also be fitted after surgery in this region. The purpose of a Minerva brace is to immobilise the spine so that the ligaments can heal and the bones can heal. This usually takes around 6-12 weeks.

A person who gets fitted with a Minerva brace is then able to sit up and get out of bed as soon as he finds a comfortable position. He may be discharged at home or at a rehabilitation facility once he is able to move around. The patient will need to visit the hospital regularly for showers and for the specialist to review his progress.

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Answer:

Plants take up nutrients in water and make their own food. Animals ingest/  eat food and cannot make food. Animals have soft membranes and have skeletons to give body shape

Explanation:

Answer:

Plants and animals differ in important ways. – The major differences are: Plants take up nutrients in water and make their own food. Animals ingest (eat)food and cannot make food. ... – Animals have soft membranes and have skeletons to give body shape

Explanation:

Answer:

b. T cells

Explanation:

correctEdgbuzz

Answer:

conduction

Explanation:

the process by which heat or electricity is directly transmitted through a substance when there is a difference of temperature or of electrical potential between adjoining regions, without movement of the material.

the process by which sound waves travel through a medium.

the transmission of impulses along nerves.

the conveying of fluid through a pipe or other channel.

Bones are created from osteoblasts into compact or spongy forms of long, short, flat, or irregular shapes which meet at joints or articulations.

A solid body tissue known as bone, bone is made up of cells that are encased in an abundant amount of hard intercellular substance. Collagen and calcium phosphate are the two primary constituents of this material, and they are what set bone apart from other types of hard tissues, such as chitin, enamel, and shell.

The structure and support of the body, as well as protection for certain organs, are all provided by bone. Additionally, bone acts as a repository for minerals and supplies the medium (the marrow) that is necessary for the formation of blood cells as well as their storage.

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Answer:

An ecosystem is a community of living organisms in conjunction with the nonliving components of their environment, interacting as a system. These biotic and abiotic components are linked together through nutrient cycles and energy flows

a biological community of interacting organisms and their physical environment.

Answer:

97 percent

Explanation:

Science

Answer:

below

Explanation:

Over 97 percent of the earth's water is found in the oceans as salt water. Two percent of the earth's water is stored as fresh water in glaciers, ice caps, and snowy mountain ranges. That leaves only one percent of the earth's water available to us for our daily water supply needs.

The substrate molecule that starts this metabolic pathway is threonine. The molecule of inhibition is isoleucine. It comes under non-competitive inhibition

when it connects to an allosteric site, it has the most substantial regulatory impact. The non-active site of an enzyme is in which the allosteric inhibitor interacts. The active site's architecture is altered to prevent the enzyme from binding to its substrate.

Through feedback inhibition, isoleucine inhibits threonine deaminase from working. Noncompetitive inhibitors are used in a common biochemical process called feedback inhibition to modulate some enzyme activity. In this process, the finished item blocks the enzyme that catalyses the initial reaction in a chain of reactions.

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Answer:

Tropical rain forests grow around the equator in South America, Africa, and Southeast Asia,  The temperature is stable year-round, around 27°C (60° Fahrenheit). As you can tell from the name, it rains a lot in these forests. Most tropical forests receive at least 200 cm (80 inches) of rain in a year. Tropical forests generally have a rainy and dry season. Temperate forests occur in the next latitude ring, in North America, northeastern Asia, and Europe, temperature ranges from -30 to 30°C (-22 to 86 F) and the forests receive 75-150 cm (30-60 in) of precipitation per year,

Explanation:

The refraction of light occurs as it travels from one medium to another. The refraction of light refers to its bending or change in direction as it passes from one medium to another with a different optical density.

Refraction is the phenomenon where light bends or changes direction as it passes from one medium to another with a different optical density. When light encounters a boundary between two mediums, such as air and water or air and glass, its speed and direction can be altered. This change in speed and direction is caused by the difference in the refractive indices of the two mediums.
The refractive index of a medium is a measure of how much the speed of light is reduced when it passes through that medium compared to its speed in a vacuum. When light travels from a medium with a lower refractive index to a medium with a higher refractive index, it bends towards the normal (an imaginary line perpendicular to the surface). Conversely, when light travels from a medium with a higher refractive index to a medium with a lower refractive index, it bends away from the normal.
Refraction is responsible for various optical phenomena, such as the bending of light in lenses, the formation of rainbows, and the apparent displacement of objects when viewed through water.

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Answer:

Very large, massive stars burn their fuel much faster than smaller stars. Their main sequence may last only a few hundred thousand years. Smaller stars will live on for billions of years because they burn their fuel much more slowly. Eventually, the star's fuel will begin to run out.

The joint between adjacent vertebrae that includes an intervertebral disc is classified as an amphiarthrosis joint.

The pubic symphysis is classified as a synarthrosis joint.

The elbow joint is classified as a biaxial diarthrosis joint.

Synovial joints are joints where the bones articulate with each other within a fluid-filled joint cavity.

A syndesmosis joint connects the tibia and fibula bones of the leg.

The interosseous membrane of the forearm is an example of a wide fibrous joint.

A gomphosis joint anchors a tooth to the jaw.

A syndesmosis is a fibrous joint that unites parallel bones.

A cartilaginous joint is called a symphysis when the bones are united by fibrocartilage.

A synchondrosis joint is found at the first sternocostal joint of the thoracic cage.

Adjacent vertebrae are joined by a symphysis joint.

The epiphyseal plate of a growing long bone in a child is classified as a synchondrosis joint.

In summary, there are various types of joints in the human body, including synarthrosis, amphiarthrosis, and diarthrosis joints. Synovial joints are those that articulate with each other within a fluid-filled joint cavity. Fibrous joints include syndesmosis, suture, and gomphosis, while cartilaginous joints include symphysis and synchondrosis. Each type of joint has unique characteristics that allow for movement and stability in the body.

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An antibody screen is performed, and all three tubes are negative after adding AHG. check cells are added, and the tubes are centrifuged. no agglutination occurs after the addition of check cells. Then the next course of action is to report the results as negative. This means that no antibodies were detected in the patient's serum.

An antibody screen is a laboratory test that is used to detect the presence of antibodies in a patient's blood. It is often done when a person needs a blood transfusion or when a woman is pregnant. If the antibody screen is positive, it means that the patient has developed antibodies to a specific antigen. This can cause problems if they receive a transfusion with blood that contains that antigen.The addition of AHG to the blood sample causes any antibodies that are present to bind to the red blood cells.

The check cells are added to the tubes to ensure that the AHG is working properly. If the AHG is working properly, the check cells will cause the red blood cells to agglutinate. If no agglutination occurs, it means that the AHG is not working properly or that there are no antibodies present in the patient's serum.In summary, if all three tubes are negative after the addition of AHG, and check cells are added to the tubes but no agglutination occurs, the next course of action is to report the results as negative.

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The stability of ecosystems are substance or compound that negatively affects the ecosystem, capable of causing changes in the structure and functioning of communities.

Ecological stability is characterized by the persistence of an ecosystem in keeping close to a state of equilibrium. Stability involves two concepts needed to delineate a community's response to disturbances: resistance (ecology) and resilience (ecology).

It constitutes the process of spontaneous maintenance of the cycles of environmental relationships maintained between factors in permanent interaction, forming stabilized ecosystems and, therefore, capable of co-evolution and their own succession.

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Answer:

The stability of ecosystems are substance or compound that negatively affects the ecosystem, capable of causing changes in the structure and functioning of communities.

Explanation:

Copied and pasted from dude above.

Answer: In mitosis a cell divides to form two identical daughter cells. It is important that the daughter cells have a copy of every chromosome, so the process involves copying the chromosomes first and then carefully separating the copies to give each new cell a full set. Before mitosis, the chromosomes are copied.

The scientist observing a fault where the hanging wall has moved upward relative to the footwall, the scientist is observing reverse fault.

When the hanging wall rises relative to the footwall, a reverse fault—the opposite of a normal fault—occurs. In places that are experiencing compression, reverse faults happen. Compressional stress forces rocks to push against one another, which results in reverse faults. In addition, the hanging wall slides up the fault relative to the footwall when the footwall and hanging wall are pushed together.

Normal flaws cause the footwall and hanging wall to become separated from one another, and the hanging wall to lower itself in relation to the footwall.

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Answer:

D

Explanation: D. The process is cellular respiration which chemical energy from food sources is released in

the form of ATP.

Answer:

Their important

Explanation:

Because with out them the ecosystems will fall apart because each organisms in the ecosystems relationships with each other effect the popular in the ecosystems rapidly and could mess up the flow if of ecosystems if the relationships didn't exist

Answer:

The answer to your question is C island arcs

Explanation:

When two oceanic plates converge, the denser plate will end up sinking below the less dense plate, leading to the formation of an oceanic subduction zone.

A subduction zone is also generated when two oceanic plates collide — the older plate is forced under the younger one — and it leads to the formation of chains of volcanic islands known as island arcs.

I hope this helps and have a wonderful day!

Zoos are cheap and don't properly take care of animals nor do they give the right food portions often being under fed.

Adherens Junctions are calcium dependent junction.

The correct option is (C) Adherens Junction

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% Compaction = (Dry Unit Weight achieved / Maximum Dry Unit Weight) x 100
Plugging in the values given in the question, we get:
% Compaction = (107.1 / 112.6) x 100
% Compaction = 95.12%
Therefore, the percent of compaction achieved by the contractor is 95.12%.

Compaction refers to the process of reducing the volume or increasing the density of a material by applying pressure. It is commonly used in construction and civil engineering to improve the properties of soil, aggregate, or asphalt materials. By compacting these materials, their load-bearing capacity, stability, and resistance to settlement can be enhanced. Compaction is achieved by using specialized machinery, such as compactors or rollers, which exert pressure on the material to remove air voids and ensure proper particle-to-particle contact. The result is a denser and more stable material that is better suited for various construction applications, including roads, foundations, embankments, and pavements.

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Answer:

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