Approximately what percentage of the atp formed by the electron transport chain is produced by substrate-level phosphorylation?.

Photosynthesis is not part of food processing in animals.

Photosynthesis is a process by which plants, algae, and some bacteria use energy from sunlight to produce organic compounds such as glucose, which can be used as food. Animals, on the other hand, are not capable of carrying out photosynthesis and must obtain their food from external sources.

Food processing in animals involves a series of physiological processes that allow the animal to break down and absorb nutrients from food. These processes include ingestion, digestion, absorption, assimilation, and egestion. During ingestion, food is taken into the mouth and broken down into smaller pieces. In digestion, enzymes and acids break down the food into its constituent nutrients. In absorption, nutrients are taken up into the bloodstream and transported to the cells of the body. In assimilation, nutrients are used by the cells to produce energy and build new tissues. Finally, in egestion, undigested food and waste products are eliminated from the body.

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Answer:

Water expands when it freezes making it less dense than the water from which it freezes. In fact, its volume is a little over 9% greater (or density ca.

Answer:

Depends on what is freezing. Generally it increases density.

Explanation:

water when frozen has a lower density. but generally freezing increases density because it packs the molecules tighter

Answer:

A

sorry for hearing that your mom will kill you

Answer:

Explanation:

The glycosidic bond in DNA is the nitrogen-carbon coupling in between the 9′ nitrogen of purine bases (Adenine/Guanine) or the 1′ nitrogen of pyrimidine bases (Cytosine/Thymine) as well as the 1′ carbon of the deoxyribose sugar group. The synthesis of nucleoside arises from the binding of the nitrogenous base to the deoxyribose sugar via N-glycosidic linkage.

Answer:

 2 hydrogens and 1 oxygen to make H20

Explanation:

Answer:

Conduction

Explanation:

Conduction is the transfer of heat between substances that are in direct contact with each other. The better the conductor, the more rapidly heat will be transferred. Metal is a good conduction of heat. Conduction occurs when a substance is heated, particles will gain more energy, and vibrate more.

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Answer:

Erythrocytes are not considered true cells, because of their lack of a nucleus. The effect of having no nucleus makes their self-reproduction impossible, and the absence of mitochondria is a disadvantage because they have to obtain energy by alternative reactions.

Explanation:

Erythrocytes, or red blood cells, are the structure in charge of transporting gases in the blood. When these cells are mature, they have already lost their nucleus —in order to have space to house the hemoglobin molecule— which prevents mature red blood cells from being able to reproduce.

Additionally, red blood cells do not have mitochondria —the main energy generator in eukaryotic cells— so in order to obtain energy they need to perform lactic fermentation, with a lower enegetic yield, which may be a disadvantage, but sufficient for this structure to perform its function.

When evolutionary stasis is observed, there is not a single explanation that accounts for it.

Evolutionary stasis is a phenomenon that is characterized by the lack of phenotypic evolution in a lineage over a certain period of time. This can be observed in the fossil record and through genetic analyses of extant organisms. There are many factors that can contribute to evolutionary stasis, including stabilizing selection, genetic drift, and developmental constraints. Stabilizing selection occurs when the average phenotype of a population is favored, and extreme phenotypes are selected against.

This can lead to the fixation of alleles in a population, which can contribute to evolutionary stasis. Developmental constraints occur when developmental pathways limit the range of possible phenotypic variation in a lineage. For example, the mammalian body plan is constrained by the four-limbed tetrapod ancestor. In conclusion, there is not a single explanation that accounts for evolutionary stasis. Rather, it is the result of a complex interplay of genetic, developmental, and ecological factors.

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The correct source of dietary Vitamin A that control many processes is none of the options provided in the question.

The Vitamin A/Retinoids family of molecules play a crucial role in controlling various bodily processes. These molecules are primarily derived from dietary sources. However, the options provided in the question, fiber-containing bran, structural cellulose, and cell wall waxes, are not sources of Vitamin A. Instead, Vitamin A can be obtained from foods such as liver, dairy products, and certain fruits and vegetables, particularly those with orange or yellow pigments.

While the Vitamin A/Retinoids family of molecules are powerful and essential for many bodily functions, it is important to ensure that we obtain adequate levels of this vitamin through a balanced and varied diet that includes sources such as liver, dairy, and colorful fruits and vegetables.
Main Answer: In the body, Vitamin A is mostly obtained from dietary sources, specifically through the consumption of structural cellulose.

Vitamin A is a fat-soluble vitamin that plays crucial roles in vision, immune function, and cellular growth. It is found in different forms, such as retinoids, and can be obtained through the diet. While dietary fibers, cell wall waxes, and structural cellulose are all part of plant-based foods, it is the structural cellulose that is closely associated with Vitamin A sources. Foods rich in Vitamin A include carrots, sweet potatoes, and leafy greens, which all contain structural cellulose.

To ensure adequate intake of Vitamin A, one should consume foods containing structural cellulose, as these are the primary dietary sources of this essential nutrient.

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Answer: black male

Explanation:

It would let us see the difference between Calix and a normal male cat

Answer:

black male is correct

Explanation:

doing the gizmo right now and it was correct.

The appropriate labels in the order as shown in the diagram (1, 2, 3) are chromosomes, genes, and DNA. Option b is correct.

In the context of heredity, the appropriate labels in the given diagram (1, 2, 3) are chromosome, gene, DNA. Chromosomes are structures found in the cell nucleus that contain genetic information. Genes, which are segments of DNA, are located on chromosomes and carry specific instructions for the synthesis of proteins and other molecules.

DNA, or deoxyribonucleic acid, is the fundamental molecule that carries the genetic code in all living organisms. This order is consistent with the flow of information in heredity, where DNA within genes is organized into chromosomes. Thus, option b is correct.

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The complete question is:

A teacher uses the diagram below to help him explain hereditary to a group of students. which of these combinations identifies the appropriate labels in the order as shown in the diagram (1, 2, 3)

a.) chromosome, DNA, gene

b.)chromosome, gene, DNA

c.) DNA, chromosome, gene

d.) DNA, gene, chromosome

Answer:

it is the amount of soil, sunlight, and the music they listen to

control variables are the elements that are always constant and not changed throughout the experiment.

Answer:

mutation and recombination

Explanation:

Genetic variation can be caused by mutation (which can create entirely new alleles in a population), random mating, random fertilization, and recombination between homologous chromosomes during meiosis (which reshuffles alleles within an organism's offspring).

Lichens consist of at least two species, a saprophytic fungus, and a photosynthetic partner known as a photobiont.

The photobiont can be either a prokaryotic organism, such as a cyanobacterium, or a eukaryotic organism, such as a green alga or a photosynthetic yeast. This partnership between the fungus and the photobiont is known as mutualistic symbiosis.

The fungus provides the structure and protection for the lichen, while the photobiont performs photosynthesis to produce organic compounds that benefit both organisms. The fungus obtains nutrients from decaying organic matter in the environment, and the photobiont supplies the lichen with carbohydrates and other essential compounds through photosynthesis.

This mutualistic relationship allows lichens to colonize a wide range of habitats, including rocks, trees, and soil surfaces. The specific combination of fungus and photobiont can vary, leading to the diverse forms and colors of lichens observed in nature. The partnership between the fungus and the photobiont is essential for the survival and ecological success of lichens in various ecosystems.

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Answer:

three

Explanation:

I hope this helps you

When the light energy boosts electrons from the chlorophyll which is known as P680 to the primary electron acceptor, electron holes of P680 are filled by electrons from water.

There are basically two types of photosystems namely, the photosystem I (PSI) and the photosystem II (PSII). Both these photosystems contain many pigments which can help collect the light energy and also contain a special pair of chlorophyll molecules which are found at the core of the photosystem. The special pair of photosystem I is known as P700, while that of photosystem II is called P680.

When the light energy boosts electrons from the chlorophyll which is known as P680 to the primary electron acceptor, electron holes of P680 are filled by electrons from water.

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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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The correct option is  A;  Restricted range, narrow habitat tolerances, and small local populations ,

Net reproductive rate (r) is computed as r = (births-deaths)/population size, or simply multiply by 100. Because the population is so much larger, many more people are added.

The second type. A Type II survivorship curve can be found in many bird species. Organisms die more or less evenly at each age interval in a Type II curve. Organisms with this type of survivorship curve may also have a small number of offspring and require a lot of parental care.

A habitat is the broad location in which an organism lives, whereas a niche is the set of physical and biological conditions in which a species lives, as well as the means by which the species obtains what it requires to survive and reproduce.

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Maintaining such a society requires a large and well-organized population,and after the demise of Cahokia, the population of the Mississippi Valley shrunk in an extreme manner which was why no no urban center of similar size and sophistication emerged to take its place.

This is referred to the total number of people present in an area over a given period of time and is influenced by different factors such as employment opportunities etc.

Cahokia was known to be very sophisticated due to its large population who were  well-organized. After the demise of Cahokia, the population of the Mississippi Valley shrunk drastically.

This was the reason why no center of similar size and sophistication emerged to take its place and is therefore the most appropriate choice.

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In individuals with cystic fibrosis (CF), the function of the cystic fibrosis transmembrane conductance regulator (CFTR) protein is altered.

The CFTR protein is responsible for regulating the flow of chloride ions across cell membranes, particularly in the epithelial cells that line various organs in the body.

This chloride ion movement, in turn, helps maintain the balance of salt and water in the affected tissues.

In CF, mutations in the CFTR gene lead to the production of a faulty CFTR protein or the absence of the CFTR protein altogether. These mutations affect the structure and function of the CFTR protein, impairing its ability to regulate chloride ion transport properly. As a result, several abnormalities occur:

Reduced Chloride Ion Transport: The defective CFTR protein in CF is unable to facilitate the normal movement of chloride ions out of cells. This disruption leads to a decrease in chloride ion concentration in the epithelial cell secretions.

Impaired Water Transport: Chloride ions play a crucial role in maintaining the proper balance of salt and water in various tissues. With reduced chloride ion transport, water movement across the cell surfaces is also affected. As a result, the epithelial secretions become thicker and stickier than normal.

Altered Mucus Secretion: The abnormal consistency of the secretions affects the production of mucus in various organs, including the lungs, pancreas, liver, and intestines. The mucus becomes thick and viscous, impairing its ability to effectively lubricate and protect the affected organs.

Accumulation of Mucus: The thickened mucus becomes difficult to clear from the airways, leading to the accumulation of mucus in the lungs. This provides a favorable environment for the growth of bacteria, leading to frequent respiratory infections and inflammation.

Malfunction of Other Organs: In addition to the lungs, the abnormal CFTR protein affects other organs such as the pancreas, liver, and intestines. In the pancreas, it disrupts the normal release of digestive enzymes, impairing the digestion and absorption of nutrients. The liver and intestines may also be affected, leading to complications in these organs.

It's important to note that CF is a complex condition, and the specific effects of CFTR mutations can vary among individuals. The severity and manifestation of CF can depend on the specific mutation(s) present and the interactions with other genetic and environmental factors.

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Answer:

formed of ice, rock, and dust

develop tails near the Sun

Explanation:

Comet is a smaller celestial body which is mainly composed of ice and dust.

The other components of this comet are rocks and gas.

When any comet approaches a sun it can deliver a tail of dust or gas.

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“gurlll call me ugly I saiddddd gurl WHEREEEE?!?! She seddd under allt make-up nddd I said GIRLLL WHEREEEEEEEE”

Answer:

A

Explanation:

The general rule in meterology is that low pressure is under 1,000 mb

TRUE, it brings wetter and warmer conditions that are atypical. So El Niño cycle brings more extreme climatic fluctuations.

Answer:

When two carriers of Cystic Fibrosis (Aa) are crossed, the probability that their children will inherit two recessive alleles and have Cystic Fibrosis (aa) is 25%. This can be determined by performing a Punnett square, which shows all the possible gamete combinations and the resulting offspring genotypes. The Punnett Square would look like this:

A | a

—————

A | AA | Aa

a | Aa | aa

As you can see, out of the four boxes, one of them contains two recessive alleles, so the probability of their children having Cystic Fibrosis is one out of four, or 25%.

When you try to drive when you are drowsy, it can have serious consequences. Drowsiness can affect your ability to concentrate, make good decisions, and react quickly.

Your reaction time slows down, which means that it takes longer for you to respond to changes in traffic or road conditions. You may also experience blurred vision, difficulty staying in your lane, and problems with depth perception. These factors increase your risk of being involved in an accident, which could result in injury or even death. It's important to recognize the signs of drowsiness and avoid driving when you are feeling tired. Instead, take a break and rest until you feel alert and focused enough to safely operate a vehicle.

When you try to drive while drowsy, several negative consequences may occur. First, your reaction time becomes slower, making it harder to respond to potential hazards on the road. Second, your ability to concentrate decreases, leading to a higher chance of missing important signs or signals. Lastly, there is an increased risk of falling asleep at the wheel, which can result in a severe accident. Overall, driving when drowsy significantly increases the risk of accidents and jeopardizes the safety of yourself and others on the road.

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The E-S complex, option A:  may break down to form free enzyme and substrate, or free enzyme and product.

The E-S complex, or the enzyme-substrate complex, is created during enzymatic processes when the substrate binds to the active site of the enzyme. Depending on the nature of the enzyme and the reaction, this complex can then go through several processes.

The E-S complex may occasionally disintegrate, releasing the substrate and the free enzyme, which can then take part in other processes. In other situations, the E-S complex could move quickly to produce the products without dissipating into the free enzyme and substrate.

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Correct question:

the substrate-enzyme (e-s) complex group of answer choices

may break down to form free enzyme and substrate, or free enzyme and product.

always breaks down to form free enzyme and substrate.

always proceeds to form the products rapidly.

always breaks down to form free enzyme and product.

Cell grown in a petri dih tend to divide until they form a thin layer covering the bottom of the dih by turning the regulators on and off, you can regulate cell division and growth.

Cell division and growth are managed and controlled by signal proteins. For instance, mitogens help remove undesirable restrictions that would otherwise prevent the progression of the cell cycle. Growth factors promote cell growth by producing proteins. Apoptosis is also inhibited by a number of survival factors. Cell division and growth can be turned on or off depending on these three factors. Life requires the process of mitosis to occur. A cell divides into two identical daughter cells after replicating all of its parts, including its chromosomes. Mitosis is a crucial process, and certain genes carefully control each stage.

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The correct answer is B. Acidic ocean water. The onset of early spring events typically does not directly cause the ocean water to become more acidic.

Since the industrial revolution, or more than 200 years ago, the burning of fossil fuels and changes in land use have led to a rise in the atmospheric concentration of carbon dioxide (CO2). About 30% of the CO2 that is emitted into the atmosphere is absorbed by the ocean, and as atmospheric CO2 levels rise, so do ocean CO2 levels. The concentration of hydrogen ions increases as a result of a series of chemical processes that take place when CO2 is absorbed by saltwater. The seawater's acidity rises as a result, and carbonate ions become significantly less common. The other options, flowering, fruit ripening, and hatching eggs, are all biological events that can be influenced by the changing seasons and environmental conditions associated with early spring.

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Answer:

C.  recycle

Explanation:

There are three R's of solid waste management: Reduce, Reuse, and Recycle.

Reduce allows the reduction of waste; Reuse allows the using the old or wastes again; and recycle allows the transformation of waste material into the new product rather than throwing it.

In the given example, Carol creates compost from the garden waste in her house so she is following "Recycle" management and turning garden waste into a new useful product that is compost.

Hence, the correct answer is "C.  recycle".

Answer:

D. rot

Explanation:

in order to create compost the waste has to  rot in order to be composted into fertilizer or A.K.A compost