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The human GI tract has an average length of about 5 m and extends from the mouth to the anus in mammals. 17 The buccal cavity, esophagus, stomach, small intestine, and large intestine are the macroscopic compartments that are divided from one another by sphincters.

Is the digestive system considered to be external to the body?

Due to its open ends—the mouth and anus—which are both to the outside world—the alimentary canal is regarded as existing outside of the body. The mouth, pharynx, esophagus, stomach, and small and large intestines are all included in the canal.

Which of the following best describes how the digestive system works?

Digestion and absorption are the two functions of the digestive system. Food is broken down into small molecules during digestion, and these molecules are then absorbed by the body.

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Starting with a glucose residue released by muscle glycogen phosphorylase, a net of 2 ATP molecules will be formed by the conversion of the residue to pyruvate by glycolysis. This process occurs quickly and efficiently, allowing muscle cells to generate energy for muscle contraction and other cellular processes.

Glycolysis is a metabolic pathway that converts glucose into pyruvate, which can then be further oxidized in the Krebs cycle to generate ATP. The process of glycolysis begins with the breakdown of glucose-6-phosphate, which is released by muscle glycogen phosphorylase. The glucose-6-phosphate is then converted to fructose-6-phosphate, which is then metabolized through a series of steps to generate pyruvate.

During glycolysis, a net of 2 ATP molecules is generated per glucose molecule. This occurs through the conversion of glucose-6-phosphate to pyruvate, which involves the generation of 4 ATP molecules through substrate-level phosphorylation, and the consumption of 2 ATP molecules during the preparatory phase of glycolysis.

Therefore, Glycolysis is an important metabolic pathway that plays a critical role in energy metabolism, and understanding its regulation and function is essential for understanding human health and disease.

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Answer:

b

Explanation: thermal energy transferred from the hotter object to the cooler one until they are at an equilibrium because heat always flows into the cooler object.

Answer:

The final stage of the digestive system is the colon (large intestine) which absorbs water and salts before the remains are passed out of the rectum as faeces. The colon can also help to absorb remaining carbohydrate and some fats.

Eutrophication happens when the environment becomes nutrient-rich, causing increased growth in plants and algae in estuaries and coastal waters.

The difference between global climate change and global warming is that Global warming is a long-term change in the average weather patterns across the Earth whereas Global climate change is the long-term heating due to human activities.

What are the results of Global Warming?

Environmental changes brought on by global warming may have a negative influence on human health. Additionally, it can result in an increase in sea level, which poses a threat to biodiversity, a change in precipitation patterns, an increase in the likelihood of droughts and floods, and the loss of coastal land.

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Answer:

The term that describes the relationship in which one organism lives inside the other one is endosymbiosis.

Explanation:

Answer:

False

Explanation:

Abuse is not always easy to identify. Both the abuser and abusee may lie about what is going on and may try to conceal signs or effects. One or both may also believe that the situation is not abuse.

When using images and graphs to express the results of a research, both of them should express the same information to make their interpretation easier. Option A is the one that best models the waves in the four locations.

There are different ways in which a researcher can correctly express the results of an experiment or research. It can be done by using images, tables, graphs, diagrams, etcetera.

Usually, combinations of one or more are used to express the same results in order to make it easier to make interpretations (for instance, tables and charts). In these cases, the same data must be expressed in all of them, so the interpretation is coherent.

In any case, there must always be a reference to what is being shown, so the persons looking at the image, chart, or table, get to know what they are looking at.

For instance, in the exposed example we can see the satellite image of ocean surfaces on Earth at different locations.

To get to understand this image by itself, we need references. These are given below in the sea surface height anomaly gradient.

This gradient explains the change in height from the lowest height -the darkest color that reflects -50 cm-, to the highest height -white expresses 50 cm-.

Letters A, B, C, and D are references to the locations that were considered.

If we want to make a graph with this same information, we need to make a good interpretation of the image and then reflect it in the graph.

In the exposed example, graph A is the one that best reflects the information provided in the image but is not entirely correct.

Image

The graph must express the change in water surface height. This change is expressed in the Y ax of the chart.

Probably the X ax represents normal heights.

According to the information,

Graph A is the one that best represents this information.

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Answer:

The nervous system influence the respiratory system by regulating breathing rate.

Explanation:

The respiratory system is controlled by the nervous system, which consists of two branches - the sympathetic and parasympathetic nervous systems. In addition the respiratory centers of the brainstem is responsible for the regulation of breathing patterns.

The muscularis mucosae function in ways quite similar to the muscle fibers of the arteriole walls in the human body.

The muscularis mucosae is a thin layer of muscle found in the tunica mucosa of hollow organs of the human body, such as the gastrointestinal tract. The muscularis mucosae is a type of smooth muscle, and it is located beneath the mucous membrane's epithelium.The muscularis mucosae has two principal layers of smooth muscle cells, which are orientated in an internal circular and an external longitudinal direction. These two layers' orientation gives the mucous membrane the ability to undulate, which propels food through the digestive system.

Aside from being present in the human body, the muscle fibers of arteriole walls are a structural feature of the cardiovascular system that controls blood flow through the arteries by contracting and relaxing. The contraction of the arteriole smooth muscle layer reduces blood flow to a region, while the relaxation of the smooth muscle layer increases blood flow to a region.

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The development of pubic hair in males and females is considered a secondary sex characteristic because it is not directly related to sexual reproduction. The correct option is B.

Secondary sex characteristics refer to physical characteristics that develop during puberty and distinguish between the two sexes.

While primary sex characteristics, such as the uterus and testes, are organs that are specifically associated with reproduction, secondary sex characteristics refer to other physical features that help differentiate males from females.

During puberty, both boys and girls develop pubic hair as one of their secondary sexual characteristics. The presence of pubic hair is not related to reproduction but it is used to distinguish males from females.

Thus, the correct option is B. It is not directly related to sexual reproduction.

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Answer:

A. Buffers absorb excess hydrogen and hydroxide ions to prevent increases or decrease in pH. An example is the bicarbonate system in human body.

Explanation:

In nature, buffer is a known to be a solution capable of maintaining the pH of an ionic solution i.e. resist alteration to the acidic or basic content, by neutralizing excess hydrogen ions (H+) or hydroxyll ions (OH-) added to it.

Buffers, with the aid of their weak acid/conjugate base or weak base/conjugate acid, absorb/react with excess hydrogen and hydroxide ions to prevent increases or decrease in pH. An example of buffer in humans is the bicarbonate buffer system in that maintains stable pH in the human blood.

Buffers absorb excess hydrogen and hydroxide ions to prevent increases or decrease in pH. An example is the bicarbonate system in human body.

Thus, By neutralizing excess hydrogen ions (H+) or hydroxyl ions (OH-) given to an ionic solution, buffer is known in nature to be a solution capable of maintaining the pH of the ionic solution, i.e. resisting alteration to the acidic or basic content.

In order to prevent pH increases or decreases, buffers absorb/react with excess hydrogen and hydroxide ions using their weak acid/conjugate base or weak base/conjugate acid properties.

The bicarbonate buffer system, which keeps the pH of human blood steady, is an example of a buffer in humans.

Thus, Buffers absorb excess hydrogen and hydroxide ions to prevent increases or decrease in pH. An example is the bicarbonate system in human body.

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Answer:

Screens: Silicon, Bauxite

Batteries: Graphite, Lithium

Explanation:

Answer: screens: Silicon and Bauxite

batteries: lithiul and graphite

Explanation:

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

The surface of the nucleus is bounded by two phospholipid bilayer membranes, collectively called the nuclear envelope . The boundary of the nucleus is referred to as the nuclear envelope. It includes  phospholipid bilayers: an outer membrane and an internal membrane. The nuclear membrane is non-stop with the endoplasmic reticulum.

The nuclear envelope, additionally referred to as the nuclear membrane, is made of  lipid bilayer membranes that during eukaryotic cells surrounds the nucleus, which encloses the genetic material. The nuclear envelope includes  lipid bilayer membranes: an internal nuclear membrane and an outer nuclear membrane.

The nuclear envelope has a complicated structure, inclusive of  nuclear membranes, an underlying nuclear lamina, and nuclear pore complexes . The nucleus is surrounded with the aid of using a machine of  concentric membranes, referred to as the internal and outer nuclear membranes.

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The Red Queen hypothesis posits that sexual reproduction is an adaptation for escaping pathogens.

The Red Queen hypothesis, proposed by Leigh Van Valen, suggests that sexual reproduction evolved as a means to escape from coevolving pathogens. According to this hypothesis, pathogens constantly adapt and evolve, posing a threat to their hosts. Through sexual reproduction, organisms can generate genetic diversity in their offspring, increasing the likelihood of having individuals with advantageous traits to combat the ever-changing pathogens. By shuffling and recombining genes, sexual reproduction provides a way for hosts to stay one step ahead in the evolutionary arms race with pathogens. The Red Queen hypothesis highlights the evolutionary advantage of sexual reproduction as a mechanism to enhance the survival and fitness of organisms in dynamic environments.

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Answer: Here are some factors on why the Carbon Levels are lower in this months. The main factor why is because it's around the summer time, and a lot of plants grow at this time of year. With the more plants grown, the more Carbon is out of the air, and the less levels there are in the air. The second factor why this is happening is because many people are on vacations. They are resting in Florida, or chilling in Italy. You may be like, What? But this is a reason. When they are chilling on the beach, there vehicle isn't in use, and it lowers the levels as more people are doing this. And In these times, people are staying home, so they aren't using their car, which added, increases the carbon rates. And in Winter, the plants die, so the carbon goes up, and cars burn more petrol to keep it in use in the cold, which also increases the carbon levels in the air. I hope this helps. :)

Answer:

Which structure? is there a picture of diagram for refference?

Explanation:

Wild guess but I would go with spleen

Explanation:

The grass help feeds the baboon. This means the baboon will have to poop out the grass. Then the dung bettle feeds off of that poop.

In a elimination, the base extracts a proton and the leaving group leaves simultaneouslyThe process in which the leaving group leaves, and the base abstracts a proton is called deprotonation.

In a deprotonation reaction, the proton is abstracted by the base. In an elimination reaction, the base extracts a proton and the leaving group leaves at the same time. Deprotonation is a chemical process in which a molecule loses a proton (H+).

Deprotonation reactions can occur either naturally or artificially through chemical reactions. The removal of a proton by a chemical species is known as deprotonation. The proton is typically abstracted from a hydrogen atom by the chemical species. In chemistry, the process of removing a hydrogen cation from a molecule is known as deprotonation. Thus, deprotonation reactions can be identified as the opposite of protonation reactions.

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Conservationists in northwest Thailand are working to conserve the Indochinese subspecies of tiger that is on the brink of extinction. These tigers are found in Cambodia, Laos, Myanmar, Thailand, and Vietnam, but their numbers have been declining due to habitat loss and poaching.The Indochinese tiger (Panthera tigris corbetti) is one of the six tiger subspecies and is found in the tropical forests of Southeast Asia. Its habitat spans across various ecosystems, from the Himalayan foothills to the dry forests of Cambodia.

Despite being the second-largest tiger subspecies, the Indochinese tiger is endangered and on the brink of extinction.The Wildlife Conservation Society (WCS) is working with the Thai government and local partners to save this critically endangered tiger from extinction. WCS has established a tiger monitoring system in the region that monitors the tiger population and provides data on the effectiveness of conservation measures. The organization is also working with local communities to reduce human-tiger conflict and promote sustainable livelihoods, which reduces the need for poaching.

In addition, the Thai government has stepped up efforts to protect the Indochinese tiger. They have designated several wildlife sanctuaries to protect the tiger’s habitat and increased penalties for poaching and wildlife trafficking. These conservation efforts have shown some success, with the tiger population slowly increasing in some areas. However, much work still needs to be done to ensure the long-term survival of this iconic species.

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a. Shrink

When more people die than are born, number of people will decrease.

The evidence supporting the Big Bang theory assumed that the universe was very tiny and extremely hot.

In conclusion, the theory stated that an explosion led to the formation of the universe.

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Of the available options, the first one states that cellulose is a structural part of the hair, this is not correct for several reasons, first cellulose is a biopolymer characteristic of cellular walls in plants, and it's not present in animal cells, secondly human hair is formed mainly of keratin a protein, therefore their basic units are amino acids, not carbohydrates. Therefore taking this into consideration, the correct answer is option 1.

The statement which is true regarding protein as a source of energy is: the use of protein as a source of energy is greater for endurance athletes than for those who do body-building or weightlifting.

Protein is an essential macro-nutrient which should be available in a person's diet. Proteins are important for the maintenance of muscle mass and they also enhance muscle growth. Proteins supply four calories per gram, just like carbohydrates. However, fats provide nine calories per gram.

The protein requirement is greater in endurance athletes as compared to those who do body-building or weightlifting since amino acid oxidation is considerably increased during endurance exercises.

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Answer:

RNA is somewhat similar to DNA; they both are nucleic acids of nitrogen-containing bases joined by sugar-phosphate backbone. How ever structural and functional differences distinguish RNA from DNA. Structurally, RNA is a single-stranded where as DNA is double stranded. DNA has Thymine, where as RNA has Uracil.

Explanation:

Cell membrane, nucleus, ribosome are the common in both plant and animal cells.

Thus, An organelle is a subcellular structure that, like an organ in the body, has one or more specific tasks to carry out within the cell.

The nucleus, which house genetic material, the mitochondria, which generate chemical energy, and the ribosomes, which put together proteins, are some of the more significant cell organelles.

The mitochondrion is responsible for generating energy, and the lysosome is responsible for converting big molecules into smaller ones by disassembling them.

Thus, Cell membrane, nucleus, ribosome are the common in both plant and animal cells.

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