What is the role of transcription in protein synthesis?
A. It makes an exact copy of the DNA.
B. It copies the instructions in DNA onto a strand of mRNA.
C. It copies the instructions on ribosomes into DNA.
D. It translates the instructions in tRNA into amino acids.

NAD+ is produced during the production of lactate, and it can be recycled during glycolysis.

According to the dictionary, intensity is the characteristic of being extremely powerful, concentrated, or difficult, or the strength or difficulty level of anything. Being able to run at your full speed for miles on end is an example of intensity. The speed at which a treadmill is going is an illustration of intensity. noun.

The pace at which light disperses over a surface of a specific region some distances from a source is referred to as intensity. The intensity changes depending on the source's power and distance from it.

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Winter is colder than summer and this is mainly because the earth's axis is tilted. It is all about the tilt of the earth's axis.

Many people believe that the temperature changes because the Earth is closer to the sun in summer and farther from the sun in winter. But the Earth is farthest from the sun in July and is closest to the sun in January.

During the summer, the sun's rays hit the Earth at a steep angle. The light does not spread out as much, thus increasing the amount of energy hitting any given spot.

During the winter, the sun's rays hit the Earth at a shallow angle. These rays are more spread out, which minimizes the amount of energy that hits any given spot. Earth's axis is tilted, so as we orbit the sun, the angle of the sunlight hitting our planet changes throughout the year.

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Answer:

In the covalent bond between oxygen and hydrogen, the oxygen atom attracts electrons a bit more strongly than the hydrogen atoms. 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.

Explanation:

hope it helps :P

Answer:

pretty sure hybrid

Answer:

20 km/hour

Explanation:

d/m=V

50 km / 2.5 hours = 20 km/hour

The 4 steps of mitosis are Prophase,  Metaphase, Anaphase, Telophase.

The chromosomes shorten and thicken during prophase. Chromosomes align in the centre of the cell during metaphase. Chromatids split off at the centromere and migrate to opposing poles during anaphase. Telophase: Following the reorganisation of nuclear envelopes surrounding each cluster of chromosomes, two nuclei are created.

A centriole that is positioned outside the nucleus splits during the prophase, the first phase. The nuclear membrane vanishes when the lengthy, threadlike substance of the nucleus coils up into the visible chromosomes. Long, fine threads protrude from the centrioles in all directions. The spindle is made up of several of them from one centriole joining strands from the other.

Metaphase, the second stage of mitosis, sees the chromosomes travel onto the spindle's equatorial plane. The third phase, called anaphase, begins when the chromatids divide and move to the opposite ends of the cell. The chromosomes are the split chromatids. A whole pair of chromosomes moves in this way to reach each centriole.

In the telophase, the last step, the cell divides. Contrary to what happened during prophase, the chromosomes uncoil, fresh membranes form around the nuclei, and the spindle fibres disappear. Two identical cells have formed from the original one, and they are now ready to begin their initial growth phase.

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Answer:

prefrontal region

Explanation:

Temporal Lobes part of the brain has been implicated in some paraphilias.

Paraphilias are persistent and recurring sexual interests, urges, fantasies, or intense behaviours involving unusual objects, activities, or even situations. A paraphilic disorder can develop if paraphilia causes harm, distress, or functional impairment in the lives of the affected individual or others.

The DSM V lists eight paraphilias, including pedophiliac, exhibitionism, voyeurism, sexual sadism, sexual masochism, frotteurism, fetishism, and transvestic fetishism. The findings emphasize the importance of the mesial temporal lobes and the amygdala in mediating human drive.

When viewed from the side, the temporal lobes are easily identifiable brain structures with such a thumb-like appearance. Their name simply refers to their location on the side of the head beneath the temporal bone.

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Answer:

The brain gets better with practice, so routine actions like walking become second nature. That is why your first time on the monkey bars is harder than your 100th time.

So how does the brain judge distance? The key for animals — like monkeys and humans — is in our eyes.

Where these different views overlap is how the brain is able to calculate the difference in distance and to judge depth.

This happens because the closer an item is to you, the greater the relative difference between the eyes will be compared with the object. The farther away an item is, the smaller the relative distance between the eyes will be. Our brain is great at remembering patterns, and it remembers the differences that each eye is seeing and correlates it with a distance. It can also find the distance by calculating the “convergence,” or how crossed your eyes become while looking at something. The more crossed your eyes become when looking at an object, the closer the object.

Answer:

Ribosomes are macromolecular machines, found within all living cells, that perform biological protein synthesis (mRNA translation). Ribosomes link amino acids together in the order specified by the codons of messenger RNA molecules to form polypeptide chains. Ribosomes consist of two major components: the small and large ribosomal subunits. Each subunit consists of one or more ribosomal RNA molecules and many ribosomal proteins (RPs or r-proteins). The ribosomes and associated molecules are also known as the translational apparatus.

Explanation:

Answer: Messenger RNA copies the message from DNA in the nucleus and carries the message to the ribosome in the cytoplasm.

Answer:

The transfer could only occur during the day because solar energy cannot be stored.

Explanation:

The transfer of electricity produced from solar energy only occur during the day because solar energy cannot be stored at huge level. At homes, we can easily store the electricity made from solar energy with the help of batteries but for providing electricity to a state where thousands of houses are present, very big batteries are needed to store it which can't be made due to very high cost so that's why the solar energy can not be stored.

Answer:

3. It is the site where oxygen combines with small molecules and releases large amounts of energy.

Explanation:

Mitochondria is a cell organelle

It produces ATP, which is considered as energy currency of cell.

Answer:

C

:D

Explanation:

The term that describes a single female arctic fox is a vixen.

A vixen is a female fox, including the arctic fox, that is not pregnant or nursing young. It belongs to the Canidae family and is found in the tundra and other Arctic regions of the Northern Hemisphere.The Arctic fox is a small, compact, and sturdy mammal that can survive in some of the world's harshest environments.

The population of Arctic foxes that lives along the eastern coast of Russia is not referred to as a group of polar bears. It is known as a population, a community, or a family.A population is a group of animals of the same species that live in the same area and interact with one another.

A family of arctic foxes is made up of a male and female adult and their offspring. They live together in underground dens that are used for shelter and protection.Arctic foxes are considered a keystone species in the Arctic region because they play a crucial role in the ecosystem. They feed on small animals like lemmings and voles, which helps to regulate their populations. In addition, they are a food source for larger predators like wolves and polar bears, which helps to maintain balance in the food web.

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Answer:

Radiation is the transfer of heat energy through space by electromagnetic radiation.

Explanation:

Most of the electromagnetic radiation that comes to the earth from the sun

The dissolved oxygen in the flask with algae will be higher in the light, but lower in the dark.

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The specialized species interaction involving the monarch butterfly (Danaus plexippus) is its relationship with the milkweed plant (Asclepias spp.).

The specialized species interaction involving the monarch butterfly (Danaus plexippus) is its relationship with the milkweed plant (Asclepias spp.). This interaction is an example of a coevolutionary relationship, as both the monarch and the milkweed have influenced each other's evolution over time.
Monarch caterpillars exclusively feed on milkweed plants, making them highly dependent on this specific plant for survival. The milkweed, in turn, has evolved certain defense mechanisms, such as the production of toxic cardiac glycosides, to deter herbivores from consuming its leaves. However, monarch caterpillars have adapted to tolerate and even benefit from these toxins, by incorporating them into their own bodies, which makes them toxic to predators, like birds.
This ongoing adaptation between the monarch and the milkweed illustrates a coevolutionary relationship, where both species continually influence each other's evolutionary pathways. The milkweed's defenses drive the monarch's need for adaptations to tolerate the toxins, while the monarch's reliance on milkweed for sustenance pressures the plant to develop even more effective defenses. This mutual influence results in a continuous cycle of adaptation and counter-adaptation between the two species.

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Photosystems are responsible for capturing light energy and converting it into chemical energy in the form of ATP and NADPH. The process of electron flow through each photosystem involves a series of complex reactions and transfers of electrons that ultimately lead to the production of ATP and NADPH.

The first photosystem, Photosystem II (PSII), absorbs light energy and uses it to transfer electrons from water molecules to a molecule called plastoquinone. This process generates ATP through a process called photophosphorylation. The key product of PSII is oxygen, which is produced as a waste product during the process of electron transfer.

The second photosystem, Photosystem I (PSI), absorbs light energy and uses it to transfer electrons from a molecule called plastocyanin to another molecule called ferredoxin. This process generates NADPH, which is used as an energy source for various cellular processes. The key product of PSI is NADPH.

In order to replace the lost electrons in each photosystem, water is split into oxygen and hydrogen ions. The oxygen is released as a waste product, while the hydrogen ions are used to replace the lost electrons in PSII.

Overall, the energy in the electrons is used to power the processes of ATP and NADPH synthesis, which are essential for cellular metabolism and growth. The production of oxygen as a waste product is a byproduct of the electron transfer process and is critical for maintaining the balance of atmospheric gases.

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Answer:

The xylem tracheary elements consist of cells known as tracheids and vessel members, both of which are typically narrow, hollow, and elongated. Tracheids are less specialized than the vessel members and are the only type of water-conducting cells in most gymnosperms and seedless vascular plants.

The possible reason some ecosystems still seem to be suffering from acid deposition is that acid deposition is caused by more than just sulfur emissions.

Acid deposition is the deposition of acid or acidic compounds from the atmosphere to the Earth's surface. Acid deposition refers to rain, snow, fog, or dry deposition that has a higher degree of acidity than normal. Acid deposition occurs when sulfur dioxide (SO₂) and nitrogen oxides (NOx) combine with moisture in the atmosphere, forming sulfuric and nitric acid. Acid deposition is commonly known as acid rain.

Volcanic activity can produce sulfur dioxide (SO2), which can react with moisture in the atmosphere to produce sulfuric acid, resulting in acid deposition. Soil chemistry - The soil chemistry in certain ecosystems might not be able to buffer the effects of acid deposition.

Sulfur emissions refer to the release of sulfur dioxide (SO₂) into the atmosphere. SO₂ is released into the atmosphere when coal and other fossil fuels are burned. Sulfur emissions can cause acid deposition, smog, and air pollution.

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Answer:

Enzyme activity can be affected by a variety of factors, such as temperature, pH, and concentration. Enzymes work best within specific temperature and pH ranges, and sub-optimal conditions can cause an enzyme to lose its ability to bind to a substrate.

Explanation:

Answer:

C. Using the scientific method

In a pedigree, circles typically represent female individuals, while squares represent male individuals. Pedigrees are diagrams that illustrate the genetic relationships within a family across multiple generations. They are commonly used in genetics to study the inheritance of traits or genetic disorders.

The circles and squares in a pedigree represent individuals within the family, with the shapes denoting their gender. The lines connecting the shapes indicate relationships, such as marriages or parent-child connections. Offspring are typically shown below and connected to their parents.

Therefore, by analyzing a pedigree, geneticists can study patterns of inheritance, track the transmission of genetic traits or diseases, and make predictions about the likelihood of specific traits or conditions appearing in future generations.

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Answer:

C

Plants are living things but most cannot move. (Not A)

Some living things don't breathe like virus they don't go through cellular respiration.  (Not B)

There are thousands of living things that are not visible to the naked eye, like water bears. (Not D)

Answer:

They work together in the digestive system to make the food originate from the esophagus to the anus.

Explanation:

Answer:

Glands in your stomach lining make stomach acid and enzymes that break down food. Muscles of your stomach mix the food with these digestive juices. Your pancreas makes a digestive juice that has enzymes that break down carbohydrates, fats, and proteins, along with your liver that makes a digestive juice called bile, which helps digest fats and some vitamins. The pancreas delivers the digestive juice to the small intestine through small tubes called ducts. Bacteria in your small intestine make some of the enzymes you need to digest carbohydrates. It also absorbs water with other nutrients. Bacteria in your large intestine help break down remaining nutrients and make vitamin K NIH external link. Waste products of digestion, including parts of food that are still too large, become stool.

Some extra info:

Stomach. Glands in your stomach lining make stomach acid and enzymes that break down food. Muscles of your stomach mix the food with these digestive juices.  

Pancreas. Your pancreas makes a digestive juice that has enzymes that break down carbohydrates, fats, and proteins. The pancreas delivers the digestive juice to the small intestine through small tubes called ducts.

Liver. Your liver makes a digestive juice called bile that helps digest fats and some vitamins. Bile ducts carry bile from your liver to your gallbladder for storage, or to the small intestine for use.  

Small intestine. Your small intestine makes digestive juice, which mixes with bile and pancreatic juice to complete the breakdown of proteins, carbohydrates, and fats. Bacteria in your small intestine make some of the enzymes you need to digest carbohydrates. Your small intestine moves water from your bloodstream into your GI tract to help break down food. Your small intestine also absorbs water with other nutrients.

Large intestine. In your large intestine, more water moves from your GI tract into your bloodstream. Bacteria in your large intestine help break down remaining nutrients and make vitamin K NIH external link. Waste products of digestion, including parts of food that are still too large, become stool.  

Hope this helps, have a great day/night!

Answer:

understanding phylogeny. understanding a phylogeny is a lot like reading a family tree. the root of the tree represents the ancestral lineage and the tips of the branches represent the descendants of that ancestor. as you move from the route to the tips you are moving forward in time

Explanation:

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The generalization that is true regarding the types of structures which is analyzed is that structure X (outer structure of an onion cell) and structure Y (outer structure of a human skin cell) have both examples of cellular membranes.

The Cellular membranes were present in different types of cells and promote as the outer boundaries or secured barriers of the cell. They promote the flow of fluid in and out of the cell and give a structural bar.

These membranes showed as a protector to safeguarding the major tissues and organs from external components such as pathogens, UV radiation, and water loss.

Although, these generalizations have both structure X and structure Y represent cellular membranes are true, which reflects the major role of membranes in prolonging the probity and functionality of cells in various organisms.

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Although part of your question is missing, you might be referring to this full question A scientist is comparing the outer structure of an onion cell, structure X, to the outer structure of a human skin cell, structure Y. Which generalization is true about the types of structures being examined?

Answer:

A. balloon rising slowly through the air.

C. a car moving on the freeway at 100 kilometers per hour.