TOLL
Question 5
Which of the following is there most of on Earth's surface?
A) Land
B Air
CLife
D Water

Often only small amounts of DNA are available for forensic analysis so the STRs at each genetic locus are copied many times using the polymerase chain reaction (PCR) to get enough DNA to make a profile. ... Specific primers are used during PCR that attaches a fluorescent tag to the copied STRs.

To produce a DNA profile, scientists examine STRs at ten, or more, genetic loci. These genetic loci are usually on different chromosomes.

Mendel chose the pea, one of many species, to study because the plants and seeds exhibit a variety of distinctive characteristics that appear in two readily recognizable forms (e.g., seed shape is round or wrinkled; plant height is tall or short).

George Mendel, the father of genetics, chose pea plants for his genetic experiments for a variety of reasons, including

• Garden plants are simple to grow.

• Pea plant blooms are hermaphrodites, which means they exhibit traits of both sexes.

• Plants of the pure breed can be easily obtained through self-fertilization.

• Pea plants produce more quickly than other plants.

• They have a high rate of survival and remarkable disease resistance.

Gregor Mendel's research on pea plants led him to the fundamental ideas of inheritance. He came to the idea that genes are passed down from each parent as unique, paired units.

Mendel observed how parental genes separated and if they showed up as dominant or recessive qualities in the offspring. Gregor Mendel experimented with hybridization on about 29,000 pea plants. Mendel found that peas were the perfect subject since they possessed seven easily observable features that he could control. He set up two settings before starting his pea studies.

As a result, we can infer that Mendel chose the pea as the species to study out of all the others since it has a diversity of distinguishing traits in both its plants and seeds.

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Answer:They are fuel-efficient

They produce more pollutants,

Explanation:

Answer:

The correct answer is:

They are fuel-efficient.

Both electric cars and hybrid cars are known for their fuel efficiency. Electric cars are powered by electricity, which is a renewable resource, while hybrid cars use both an internal combustion engine and an electric motor to achieve better fuel efficiency. Compared to traditional gasoline-powered cars, electric and hybrid cars produce fewer emissions and are therefore more environmentally friendly.

Explanation:

Endurance training, specifically high-intensity aerobic exercises such as running, cycling, and swimming, can significantly impact the hormone erythropoietin (EPO).

Endurance training, characterized by high-intensity aerobic exercises, can influence the production of erythropoietin (EPO) in the body. EPO is a hormone responsible for stimulating the production of red blood cells in the bone marrow.

During endurance training, the body undergoes physiological adaptations to meet the increased demands for oxygen delivery to the muscles. This is achieved by increasing the oxygen-carrying capacity of the blood, which is facilitated by an increase in the production of red blood cells. EPO plays a crucial role in this process.

Engaging in activities such as running, cycling, swimming, or any other form of aerobic exercise for an extended period and at a high intensity can stimulate the release of EPO. The repetitive and prolonged muscle contractions during these activities lead to a decrease in oxygen levels, triggering the production and release of EPO from the kidneys into the bloodstream.

EPO then acts on the bone marrow, promoting the production of new red blood cells, a process known as erythropoiesis. The increased red blood cell count enhances oxygen-carrying capacity, enabling improved endurance performance and overall aerobic fitness.

It is important to note that the use of synthetic EPO, also known as blood doping, is banned in sports due to its performance-enhancing effects. Natural stimulation of EPO through endurance training is a legitimate and safe way to improve aerobic fitness and athletic performance.

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Answer:

The correct answer is - raising in water becomes puffed, or uptake of water and minerals from roots.

Explanation:

The minimum pressure applied to a solution to prevent the entering the flow of its pure solvent through q semipermeable membrane. The process of flowing the pure solvent to the solution through a semipermeable pressure is known as osmosis and the minimum pressure required to preventing the osmosis is osmotic pressure.

Many plants springing up through tree roots growing through concrete. Due to osmotic pressure, the plants grow they require more water, the inexorable osmotic pressure of water moves through the membranes can actually push through asphalt!

Movement of salt-water in the animal cell across our cell membrane and keep raisin in water and the raisin gets puffed are other examples of this phenomenon.

Answer:

b. epinephrine on beta 2 receptors causes bronchodilation

Explanation:

This is because epinephrine is an hormone and neurotransmitter that stimulate beta 2 receptors which causes signaling and their in presence in airway smooth muscle causes bronchodilation, which counter the activation of the M3 muscarinic receptors in cardiovascular. When stimulate in skeletal muscles it can lead to increased contractility and also to muscle tremors.

Answer:

Answer:c

Explanation:

Answer:

the answer is c flies carrying RHD

Explanation:

I took the and got 100

The type of chromatin modification which may affect gene expression in an epigenetic manner are 1. Chromatin remodeling - The changing of chromatin structure to allow more or less access to transcription factors. 2. Localization of histone variants - Exchange of canonical histones for histone variants which are associated with repression of gene expression. 3. Covalent histone modification - Chemical modifications of the histone proteins, such as acetylation, methylation, and phosphorylation, to change the gene expression status of associated genes. 4. DNA methylation - Chemical modification of DNA by the addition of a methyl group which can lead to gene repression.

Each of these mechanisms can affect gene expression in different ways.
1. Chromatin remodeling: This involves the rearrangement of the chromatin structure to either allow or prevent the binding of transcription factors and other regulatory proteins. For example, the SWI/SNF complex is a chromatin remodeling complex that can either activate or repress gene expression by altering the accessibility of DNA to transcription factors.
2. Localization of histone variants: Histone variants are different versions of the histone proteins that make up the nucleosome. The localization of these variants can affect gene expression by altering the structure of the chromatin. For example, the histone variant H2A.Z is associated with active gene expression, while the variant H2A.X is associated with DNA repair and recombination.
3. Covalent histone modification: This involves the addition or removal of chemical groups to the histone proteins, which can affect gene expression by altering the structure of the chromatin. For example, the addition of acetyl groups to histones can lead to the activation of gene expression, while the addition of methyl groups can lead to the repression of gene expression.
4. DNA methylation: This involves the addition of methyl groups to the DNA itself, which can affect gene expression by preventing the binding of transcription factors and other regulatory proteins. For example, the methylation of CpG islands in the promoter regions of genes can lead to the repression of gene expression.

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Answer:

true

Explanation:

Answer:

My best guess would go with A

Explanation:

The reason why is that Photosynthesis needs sunlight, water and carbon dioxide to start reactants.

Answer:

Electrical energy > kinetic energy > light energy > potential energy

Explanation:

The energy transformations that occur in the given devices are as follows:

Energy transformation refers to the processes by which one form of energy is transformed into another form.

The law of conservation of energy guides the various energy transformations that occur in the universe.

The law of conservation of energy states that energy is neither created nor destroyed but can be transformed from one form to another.

The energy transformations that occur in the given device are as follows:

In conclusion, energy transformations occur according to the law of conservation of energy.

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Answer:

Algal blooms can reduce the ability of fish and other aquatic life to find food and can cause entire populations to leave an area or even die. Harmful algal blooms cause thick, green muck that impacts clear water, recreation, businesses and property values.

Explanation:

Answer: Algal blooms can reduce the ability of fish and other aquatic life to find food and can cause entire populations to leave an area or even die. Harmful algal blooms cause thick, green muck that impacts clear water, recreation, businesses and property values.

Answer:

Pasteur showed that putrefaction is a process associated with organisms present in the air, while Koch identified the germs that cause different diseases

Explanation:

The germ theory states that pathogenic microorganisms called germs cause the disease state observed in a particular (infected) organism. The term 'germ' includes pathogenic bacteria, protists, fungi, and even non-living pathogens (e.g., viruses). This theory was developed and accepted due to the work of Louis Pasteur and Robert Koch. In the 1860s, Pasteur showed that germs were omnipresent in a flask open to the air, showing that putrefaction and fermentation are caused by these microorganisms. Moreover, in the 1880s, Koch identified the germs that cause different diseases, including tuberculosis (Mycobacterium tuberculosis) and cholera (Vibrio cholerae).

Based on your findings, rank the antibiotics in order of effectiveness in controlling the microbes obtained from your body. Novobiocin is the most effective antibiotic for S. Epidermidis infections, followed by gentamicin and, finally, penicillin.

To get the greatest bactericidal impact, antimicrobial drugs are frequently tested against bacteria in the log phase of proliferation. Bacteria may proliferate less optimally during an illness.

Heat is the recommended method of sterilizing during medication manufacture. Heat sterilization can take place in two ways: moist or dry. The most typical application of moist heat for sterilizing is autoclaving.

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The answer is D and F. I did the test

Answer:

Carbondioxide gas.

Explanation:

Carbondioxide gas is actually cycled in a web of organisms, The plants takes carbondioxide gas for the process of photosynthesis, this plant is eaten by herbivores for energy and carbondioxide is released in the process of respiration. After that, carnivores feed on these herbivores and oxygen is used in the breakdown of food for releasing energy and carbondioxide gas is also released from the body through breathing so the cycle of carbondioxide gas is continue.

Answer:

there is alot more people recycling compost in civic amenity sites then anythign else. There is also a lot more compost being recyled then total cans by about 470.

Explanation:

Answer:

A) protons

Explanation:

the number of protons in an atom of an element determines the atoms identify

The statement is not accurate. Agriculture practices can vary significantly from country to country due to various factors such as climate, geography, cultural traditions, available resources, and technological advancements.

Different regions have different agricultural practices and techniques based on their specific needs and conditions. For example, countries with arid climates may employ irrigation systems and drought-resistant crops, while those with abundant rainfall may focus on different cultivation methods. Additionally, cultural and traditional practices can influence agricultural techniques, as certain communities may have specific approaches to farming based on their heritage and local customs.

Moreover, advancements in technology and scientific research have led to the development of new agricultural practices, such as precision farming, vertical farming, and hydroponics. These practices aim to increase efficiency, productivity, and sustainability in agriculture, and they may be adopted to varying degrees in different countries based on factors like infrastructure, investment, and government policies.

In summary, agriculture practices are not the same in every country around the world. They vary depending on factors such as climate, geography, cultural traditions, available resources, and technological advancements. The diversity of agriculture practices reflects the adaptability and customization required to meet the specific needs of different regions and communities.

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Answer: You can answer one of these options and you are going to get it right:  temperature, heat, high temperature, or temp

Explanation:

The Frye and Edidin experiment demonstrated that lateral protein movement within the cell is affected by temperature.

The Frye and Edidin experiment, conducted in 1970, utilized fluorescence recovery after photobleaching (FRAP) to demonstrate that lateral protein movement within the cell membrane is influenced by temperature and membrane fluidity.

In this experiment, cell membranes were labeled with fluorescent markers, and a specific region of the membrane was photobleached (rendered non-fluorescent) using a focused laser beam. As time progressed, fluorescent molecules from surrounding areas diffused into the bleached region, leading to the recovery of fluorescence. The rate of fluorescence recovery provided insights into the lateral movement of proteins within the membrane.

The temperature affects membrane fluidity, altering the movement of lipid molecules and proteins within the membrane. Higher temperatures increase the kinetic energy of molecules, resulting in greater membrane fluidity and faster lateral movement of proteins. Conversely, lower temperatures decrease fluidity and slow down lateral movement.

By conducting the experiment at different temperatures, Frye and Edidin demonstrated that lateral protein movement is indeed influenced by membrane fluidity, which, in turn, is affected by temperature. This experiment highlighted the dynamic nature of cell membranes and the role of lipid-protein interactions in regulating membrane properties.

Overall, the Frye and Edidin experiment provided valuable insights into the biophysical properties of cell membranes, contributing to our understanding of how the arrangement and movement of molecules within the membrane influence cellular processes.

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The pedigree diagram can be used to determine relationships.

A pedigree diagram is a graphical representation used to track the inheritance of a particular trait or condition within a family. It typically shows the relationships between family members and the presence or absence of the trait in question.

In a pedigree diagram, individuals are represented by symbols such as circles (for females) or squares (for males), and lines connecting the symbols represent genetic relationships (e.g., parent-child, sibling, etc.).

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The Himalayan region is home to the yak, a type of cattle. They have a reputation for having long, shaggy hair, which is used to create many different textiles, including wool. Yak wool is popular because it is soft, warm, and long-lasting and is frequently used to manufacture clothes and blankets.

Camels are widely known for their capacity to survive in difficult desert situations, and their wool is a valuable resource in many parts of the world. Clothing, rugs, and other textiles are frequently made from camel wool because it is cosy and soft.

Goats are another typical source of wool, especially in warmer locations where other types of wool are less common. Depending on the breed of goat and the quality of the wool, the term "mohair" or "cashmere" is frequently used to describe the wool from goats. Cashmere is appreciated for its warmth and luxurious feel, while mohair is renowned for its softness, sheen, and insulating qualities.

Despite the fact that there are numerous dog breeds with long, shaggy hair, none of them actually produce true wool. Dog hair is not often used to produce textiles since it is formed of a different kind of fibre than wool. Although some dog hair can be spun into yarn and used for crafts, it is not regarded as a true wool and is not widely utilised for the manufacturing of textiles.

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The statement that is true regarding the reactions that occur in the Calvin cycle is that it consumes energy.

Calvin cycle of photosynthesis is a series of biochemical reactions that take place in the stroma of chloroplasts in photosynthetic organisms.

The Calvin cycle also called light independent or dark reaction is the second stage of the photosynthetic process. It is so called because it does not require light to occur.

The Calvin cycle makes use of the products of the light stage (ATP and NADPH) to synthesize carbohydrates.

However, the series of reaction is an energy consuming one, which makes use of ATP to occur.

Therefore, the statement that is true regarding the reactions that occur in the Calvin cycle is that it consumes energy.

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Answer:grassland

explain: 1. try your best lu guys

2.try to look up all this biomed

3.see which one doe shot have waxy leaves

4.done

Answer:

The Cell Wall & membrane transports.

Explanation:

The cell wall is what protects the innards of a cell from foreign substances, as well as protecting the overall body. The membrane transports are cut out tunnels located in the cell wall that allows for transportation of food and other products into a cell, and the waste to be expelled.

~

Answer:

✔ Cell membrane

Explanation:did on edge

Answer:yes

Explanation:

Which set of proteins assist in the process of adding amino acids one by one to the growing amino acid chain during translation?

Answer - elongation factors