how RNA codes amino acids? exact answer

Vestigial structures are remnants of structures or organs that were present in an ancestor species but are no longer present in the current species. Examples of vestigial structures include the wings of the ostrich, the appendix in humans, and the hind leg bones of the whale.

They are anatomical structures that have lost their original function through the process of evolution. They are often referred to as "leftover" or "useless" parts of the body. However, some vestigial structures may have gained new functions over time.

Here are 3 examples of vestigial structures:

1. The appendix: The appendix is a small, tube-like structure that is attached to the large intestine. It is believed to have once played a role in digesting tough plant material, but is now considered to be a vestigial structure as it no longer serves a necessary function in the human body.

2. Wisdom teeth: Wisdom teeth are the third set of molars that typically emerge during young adulthood. However, due to the evolution of the human jaw, many people do not have enough room in their mouth for these teeth, and they often become impacted or cause other dental problems.

3. Tailbone: The tailbone, or coccyx, is a small, fused set of vertebrae at the base of the spine. It is believed to be the remnant of a tail that was once present in our ancestors, but is now considered a vestigial structure as it no longer serves a functional purpose.

Overall, vestigial structures are a fascinating reminder of our evolutionary history and the changes that have occurred in our anatomy over time.

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Answer:

It was 2 people, Orville and Wilbur Wright were Americans in 1903 who created the first successful plane. The plane was called the 1903 Wright Flyer.

Explanation:

You're welcome.

The cytopathic changes in virally infected animal cells can include inclusions in the cytoplasm, cell lysis, cytoplasmic inclusions, and formation of multinucleate syncytia.


1. Inclusions in the cytoplasm are structures that are formed as a result of the viral replication process and can be seen under a microscope.
2. Clumping of cells may occur due to the formation of viral particles on the surface of infected cells.
3. Cell lysis is the destruction of the cell membrane, which can occur as a result of viral replication.
4. Cytoplasmic inclusions are abnormal structures within the cytoplasm of infected cells that can be seen under a microscope.
5. Formation of multinucleate syncytia occurs when multiple infected cells fuse together, resulting in a larger, multinucleated cell.

In summary, cytopathic changes in virally infected animal cells can include various structural and functional alterations such as inclusions in the cytoplasm, cell lysis, cytoplasmic inclusions, and formation of multinucleate syncytia.

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Answer:

Taproot systems feature a single, thick primary root, called the taproot, with smaller secondary roots growing out from the sides. The taproot may penetrate as many as 60 meters (almost 200 feet) below the ground surface. It can plumb very deep water sources and store a lot of food to help the plant survive drought and other environmental extremes. The taproot also anchors the plant very securely in the ground.

Fibrous root systems have many small branching roots, called fibrous roots, but no large primary root. The huge number of threadlike roots increases the surface area for absorption of water and minerals, but fibrous roots anchor the plant less securely

Explanation:

b. According to the Frank-Starling law, the volume of blood in the heart at the end of diastole (filling phase) is directly related to the strength of contraction during the next systole (contraction phase).

This law explains how the heart can adapt to changes in venous return by adjusting the volume of blood it pumps out. When there is more blood returning to the heart, it stretches the heart muscles, leading to a more forceful contraction and a higher stroke volume.

Conversely, when there is less blood returning, the heart muscles are less stretched, resulting in a weaker contraction and a lower stroke volume. This mechanism helps maintain adequate blood flow to the body's tissues, especially during periods of increased demand or stress.

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The photophosphorylation is the synthesis of ATP from ADP and phosphate in the plants using the light energy absorbed during the photosynthesis process.

Answer:

Fusarium wilt of banana, popularly known as Panama disease, is a lethal fungal disease caused by the soil-borne fungus Fusarium oxysporum f. sp. cubense (Foc). ... The fungus enters the plant through the roots and colonizes the xylem vessels thereby blocking the flow of water and nutrients.

Explanation:

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Panama disease is a fungal pathogen that was discovered on an Australian banana farm in 1876. The disease causes fusarium wilt in banana plants, eventually killing the crop.

Panama disease, also known as banana wilt, is a devastating banana disease caused by the soil-inhabiting fungus Fusarium oxysporum forma specialis cubense.

Panama disease is a type of fusarium wilt, that is found throughout the tropics and can be found wherever susceptible banana cultivars are grown.

Panama disease is a fungal pathogen that was discovered on an Australian banana farm in 1876. The disease causes fusarium wilt in banana plants, eventually killing the crop.

Thus, this is why Panama disease has such a negative effect on Gros bananas.

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Answer:

3. Ff ×Ff

Number 3 is the answer

1) abiotic synthesis of small organic molecules (monomers)

2) joining of monomers into polymers

3) packaging of these molecules into protobionts, droplets with membranes that maintained a distinct internal chemistry

4) origin of self-replicating molecules that eventually made inheritance possible.

It's doubtful that life could have evolved or survived in the first few hundred million years after the Earth formed.

Fox created Proteinoid by combining around 20 distinct amino acids.

Life is defined by two characteristics:

- precise replication

- metabolic rate

• RNA could both carry information and trigger chemical reactions (RNA enzymes) • some scientists believe that the earliest forms of replicating biochemicals were ribonucleic acid (RNA) based (the "RNA world" hypothesis)

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Answer:

You have your chromosomes in pairs because you get 23 from each parent.

Your chromosome pairs come from your parents, 23 from your mom (egg), 23 from your dad (sperm). Which totals to 46 chromosomes in your body.

Answer:

Center for Disease Control: they monitor health statistics and give suggestions for national awareness

Explanation:

trust

A novel method of analysis built on spectroscopy is called hyperspectral imaging. It gathers hundreds of photos for the same spatial area at various wavelengths.

Thus, Hyperspectral imaging captures the continuous spectrum of the light for each pixel of the image with precise wavelength resolution, not just in the visible but also in the near-infrared, in contrast to the human eye's three colour receptors.

Numerous disciplines, including astronomy, agriculture, molecular biology, biomedical imaging, mineralogy, geology, physics, cultural heritage, food processing, the environment, and surveillance use hyperspectral imaging.

The gathered information is organized into a "hyperspectral cube," which has three dimensions: two of which indicate the scene's spatial extent and the third its spectral content.

Thus, A novel method of analysis built on spectroscopy is called hyperspectral imaging. It gathers hundreds of photos for the same spatial area at various wavelengths.

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One characteristic of scientific knowledge is that it is attained through an impartial procedure in which the scientist's emotions and opinions are not permitted.

Observation, curiosity, rationality, inventiveness, skepticism, objectivity, and peer review are qualities or aspects of a scientist that contribute to their success. Regardless of their area, these qualities are crucial for all scientists.

Researchers and medical professionals are curious about why some people exhibit particular qualities while others do not, especially when those traits provide information on the causes and course of sickness. When a person demonstrates several distinct characteristics, this may provide us with hints as to how to identify a medical issue.

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Answer:

The Human spinal cord. The Spinal cord, if fractured or broken, would take a long time to heal and regenerate (if at all, it barely regenerates, leaving it impaired), while the starfish and gecko can just regrow those parts.

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During meiosis, the centromeres divide as the cell moves into the anaphase stage.

Meiosis is a specialized cell division process that occurs in sexually reproducing organisms. It involves two rounds of division, known as meiosis I and meiosis II, resulting in the formation of four haploid cells.

In meiosis I, the cell goes through prophase I, metaphase I, anaphase I, and telophase I. It is during anaphase I that the centromeres divide. The centromere is a region of the chromosome that holds the sister chromatids together. During anaphase I, the microtubules of the spindle apparatus pull the homologous chromosomes apart, separating them and moving them towards opposite poles of the cell. As the chromosomes separate, the centromeres divide, allowing each sister chromatid to be pulled toward opposite poles.

This division of centromeres ensures that each resulting cell in meiosis I receive one copy of each homologous chromosome. The subsequent meiosis II division then separates the sister chromatids, resulting in the formation of four haploid cells, each with a unique combination of genetic material.

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It is a technique for locating a particular DNA fragment inside a cell. The next step in CRISPR gene editing is typically to modify that piece of DNA after that.

Short RNA sequences called "CRISPR RNAs" or "crRNAs" are created from CRISPR "spacer" sequences that can direct the system to DNA sequences that match them. When the targeted DNA is located, Cas9, one of the CRISPR system's enzymes, latches to it and chops it, turning off the gene.

CRISPR/Cas9 edits genes by accurately slicing DNA, which is then repaired by the body's own mechanisms. The Cas9 enzyme and a guide RNA make up the system's two components. quickly converting cutting-edge technologies into transformational treatments.

Therefore, It is a technique for locating a particular DNA fragment inside a cell. The next step in CRISPR gene editing is typically to modify that piece of DNA after that.

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The processes responsible for redistributing water in the hydrologic cycle are evaporation, transpiration, precipitation, infiltration, and run-off.

In the hydrologic cycle, several processes are responsible for redistributing water around the earth and among ecosystems. These processes include:

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Urinary casts are a differentiating feature that helps distinguish between lower UTIs and upper UTIs.

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The correct answer is c. eutrophication.

Eutrophication is a process in which an aquatic ecosystem becomes enriched with nutrients, primarily phosphorus, and nitrogen, leading to increased plant and algae growth. This process can result in harmful algal blooms, dead zones, and fish kills in estuaries and coastal waters. The gradual increase in nutrient concentration can happen naturally or as a result of human activities, such as fertilizer runoff from agricultural lands and sewage discharge . Eutrophication can have severe health and environmental impacts, such as reduced oxygen levels and loss of biodiversity. Proper management practices are necessary to prevent and mitigate eutrophication in aquatic ecosystems.

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Answer: True

Explanation: heat, energy that is transferred from one body to another as the result of a difference in temperature. If two bodies at different temperatures are brought together, energy is transferred—i.e., heat flows—from the hotter body to the colder.

The spice should be added to the food during the simmering of the food.

Spices are frequently used at the start of the cooking process for recipes that simmer or braise, such as stews, soups, or slow-cooked dishes. This enables the flavors to combine and deepen as the food cooks. The prolonged cooking time aids in extracting and blending the spices' flavors with those of other ingredients.

As you cook, it's a good idea to taste and adjust the seasoning to make sure the spices are evenly distributed and balanced.

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Answer:

The number will appear smaller

Explanation:

Grams and Kilograms are two units of measuring the weight of substances. These two units are interchangeable/interconvertible.

One kilograms of a substance contains 1000 grams of that substance (kilo=thousand). Hence, for a substance weighing 2.00grams whose weight measurement is needed in kilograms, it will be converted by dividing the weight in grams by 1000.

That is, 2.00g/1000 = 0.002kilograms or 2.00 × 10^-3kg. According to the number after conversion, it appeared SMALLER because the kilograms (kg) is a bigger measurement compared to the grams (g).

Explanation:

The point at which every individual differs is called the DNA which is unique to each individual.

The term DNA has to do with the genetic material that is found in the genes. It is an acronym that means deoxyribonucleic acid. It is peculiar to each individual.

Hence, the point at which every individual differs is called the DNA which is unique to each individual.

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Hardwired characteristics of the brain that attempt to keep us in balance by correcting deficiencies are referred to as homeostatic mechanisms.

Homeostasis is the body's ability to maintain a stable internal environment despite external changes.

In the context of the brain, homeostatic mechanisms involve various processes that regulate physiological functions and maintain optimal levels of essential substances.

These mechanisms can include feedback loops that detect imbalances and initiate corrective actions.

For example, if there is a deficiency in a particular nutrient or hormone, the brain may activate mechanisms to increase its production, decrease its consumption, or enhance its absorption from the environment.

Homeostatic mechanisms play a crucial role in ensuring the body's overall stability and functioning, helping to maintain proper levels of various substances and promoting overall well-being.

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Answer:

Answer: non-native plants compete with native plants for resources

Explanation:

Just took the quiz ;)

Invasive species can cause harm to the ecosystem. The direct threat of these species includes preying on native species, causing diseases, preventing native species from reproducing, etc. They do this to remain in the changed environment and survive.

An invasive species grows and spreads quickly as it can adapt to a variety of growing conditions.

Invasive species are often non-native as well as lack the usual predators that control their population.

Non-native species can sometimes lives with native species without becoming a problem. The problem arises when a non-native species becomes invasive.

Thus, for surviving in the changed environment and increase their population,  non-native plants often threaten native plants of the new habitat and reduce biodiversity.

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Explanation:

The autonomic nervous system controls the tone of the digestive tract. The brain controls drinking and feeding behavior. The brain controls muscles for eating and elimination. The digestive system sends sensory information to the brain