Gerbils do not experience attention-deficit hyperactivity disorder (ADHD) in the same way that humans or some other animals do. Gerbils may exhibit behaviors that appear hyperactive, but this is usually within normal range for their species. If you are concerned about your gerbil's behavior, it's best to consult with a veterinarian who specializes in exotic pets.

Animal testing is often conducted as an initial step to assess the safety and efficacy of drugs or procedures before human trials. While animals are biologically similar to humans in many ways, there can still be differences in how a substance affects different species. Human trials are essential to ensure the safety and effectiveness of treatments for human use.

In high school, it is important to focus on a well-rounded curriculum that includes core subjects like math, science, English, and social studies. Additionally, consider taking elective courses that align with your interests and career goals to explore different subjects and develop a variety of skills. It is also a good idea to participate in extracurricular activities and community service to round out your high school experience.

To get their food of flies and other fast insects, frogs use a darting, sticky tongue. Saliva helps digest the food somewhat. The food then moves from there to the stomach, where enzymes help digest the food more. The most digestion, though, happens in the small intestine.

Some of the leading causes of animal deaths include diseases, accidents, predation, starvation, and human activities such as hunting, habitat destruction, and pollution. Each species and ecosystem face unique challenges that can impact their survival and longevity.

Teeth shape is determined by their function. Pointed teeth, like canines, are used for biting and tearing food. Flat-topped teeth, like molars, are used for grinding and crushing food. The variation in tooth shape allows for efficient food processing.

Drooling and sneezing in a cat can be caused by a variety of reasons including dental issues, respiratory infections, allergies, or foreign objects stuck in their nose. It is best to take your cat to the vet for a proper diagnosis and treatment.

I don't know how much you know about the different family groups of bacteria or how much you know about homeostasis . So I'll just give you the information that I just know about the characteristics of homeostasis. I hope you find this as useful as I have in the past. And good luck.

The term is most often used in the sense of biological homeostasis. homeo- similar or same. stasis- standing or stopping. Multicellular organisms require a homeostatic internal environment, in order to live; many environmentalists believe this principle also applies to the external environment. Many ecological, biological, and social systems are homeostatic. They oppose change to maintain equilibrium. If the system does not succeed in reestablishing its balance, it may ultimately lead the system to stop functioning.

Complex systems, such as a human body, must have homeostasis to maintain stability and to survive. These systems do not only have to endure to survive; they must adapt themselves and evolve to modifications of the environment.

Homeostatic systems show several properties:

* They are ultrastable ;

* Their whole organisation, internal, structural, and functional, contributes to the maintenance of equilibrium

* They are unpredictable (the resulting effect of a precise action often has the opposite effect to what was expected).

Main examples of homeostasis in mammals are as follows:

* The regulation of the amounts of water and minerals in the body. This is known as osmoregulation. This happens in the kidneys.

* The removal of metabolic waste. This is known as excretion. This is done by the excretory organs such as the kidneys and lungs.

* The regulation of body temperature. This is mainly done by the skin.

* The regulation of blood glucose level. This is mainly done by the liver and the insulin secreted by the pancreas.

Mechanisms of homeostasis: feedback

When a change of variable occurs, there are two main types of feedback to which the system reacts:

* Negative feedback is a reaction in which the system responds in such a way as to reverse the direction of change. Since this tends to keep things constant, it allows the maintenance of homeostasis. For instance, when the concentration of carbon dioxide in the human body increases, the lungs are signalled to increase their activity and expel more carbon dioxide.

* In positive feedback, the response is to amplify the change in the variable. This has a de-stabilizing effect, so does not result in homeostasis. Positive feedback is less common in naturally occurring systems than negative feedback, but it has its applications. For example, in nerves, a threshold electric potential triggers the generation of a much larger action potential.

Ecological homeostasis

In the Gaia hypothesis, James Lovelock stated that the entire mass of living matter on Earth (or any planet with life) functions as a vast organism that actively modifies its planet to produce the environment that suits its needs. In this view, the entire planet maintains homeostasis. Whether this sort of system is present on Earth is still open to debate. However, some relatively simple homeostatic mechanisms are generally accepted. For example, when atmospheric carbon dioxide levels rise, plants are able to grow better and thus remove more carbon dioxide from the atmosphere. When sunlight is plentiful and atmospheric temperature climbs, the phytoplankton of the ocean surface waters thrive and produce more dimethyl sulfide , DMS. The DMS molecules act as cloud condensation nuclei which produce more clouds and thus increase the atmospheric albedo and lower the temperature of the atmosphere.

Biological homeostasis

Homeostasis is one of the fundamental characteristics of living things. It is the maintenance of the internal environment within tolerable limits.

The internal environment of a living organism's body features body fluids in multicellular animals. The body fluids include blood plasma, tissue fluid and intracellular fluid. The maintenance of a steady state in these fluids is essential to living things as the lack of it harms the genetic material.

With regard to any parameter, an organism may be a conformer or a regulator. Regulators try to maintain the parameter at a constant level, regardless of what is happening in its environment. Conformers allow the environment to determine the parameter. For instance, endothermic animals maintain a constant body temperature, while ectothermic animals exhibit wide variation in body temperature.

This is not to say that conformers may not have behavioral adaptations that allow them to exert some control over the parameter in question. For instance, reptiles often sit on sun-heated rocks in the morning to raise their body temperatures.

An advantage of homeostatic regulation is that it allows the organism to function more effectively. For instance, ectotherms tend to become sluggish at low temperatures, whereas endotherms are as active as always. On the other hand, regulation requires energy. One reason snakes are able to eat just once a week is that they use much less energy for maintaining homeostasis.

homeostasis in the human body

All sorts of factors affect the suitability of the human body fluids to sustain life; these include properties like temperature, salinity, and acidity, and the concentrations of nutrients such as glucose, various ions, oxygen, and wastes, such as carbon dioxide and urea. Since these properties affect the chemical reactions that keep bodies alive, there are built-in physiological mechanisms to maintain them at desirable levels.

However, it should be noted that homeostasis is not the reason for these ongoing unconscious adjustments. homeostasis should be thought of as a general characterization of many normal processes in concert, not their proximal cause per se. Moreover, there are numerous biological phenomena which do not conform to this model, such as anabolism.

Other fields

The term has come to be used in other fields, as well.

An actuary may refer to "risk homeostasis", where (for example) people who have anti-lock brakes have no better safety record than those without anti-lock brakes, because they unconsciously compensate for the safer vehicle via less-safe driving habits.

Sociologists and psychologists may refer to "stress homeostasis", the tendency of a population or an individual to stay at a certain level of stress, often generating artificial stresses if the "natural" level of stress is not enough.

Examples

* Thermal regulation:

o The skeletal muscles can shiver to produce heat if the body temperature is too low.

o Non-shivering thermogenesis involves the decomposition of fat to produce heat.

o Sweating cools the body with the use of evaporation.

* Chemical regulation

o The pancreas produces insulin and glucagon to control blood-sugar concentration.

o The lungs take in oxygen and give off carbon dioxide.

o The kidneys remove urea, and adjust the concentrations of water and a wide variety of ions.

Most of these organs are controlled by hormones secreted from the pituitary gland, which in turn is directed by the hypothalamus. I don't know how much you know about the different family groups of bacteria or how much you know about homeostasis . So I'll just give you the information that I just know about the characteristics of homeostasis. I hope you find this as useful as I have in the past. And good luck.

The term is most often used in the sense of biological homeostasis. homeo- similar or same. stasis- standing or stopping. Multicellular organisms require a homeostatic internal environment, in order to live; many environmentalists believe this principle also applies to the external environment. Many ecological, biological, and social systems are homeostatic. They oppose change to maintain equilibrium. If the system does not succeed in reestablishing its balance, it may ultimately lead the system to stop functioning.

Complex systems, such as a human body, must have homeostasis to maintain stability and to survive. These systems do not only have to endure to survive; they must adapt themselves and evolve to modifications of the environment.

Homeostatic systems show several properties:

* They are ultrastable ;

* Their whole organisation, internal, structural, and functional, contributes to the maintenance of equilibrium

* They are unpredictable (the resulting effect of a precise action often has the opposite effect to what was expected).

Main examples of homeostasis in mammals are as follows:

* The regulation of the amounts of water and minerals in the body. This is known as osmoregulation. This happens in the kidneys.

* The removal of metabolic waste. This is known as excretion. This is done by the excretory organs such as the kidneys and lungs.

* The regulation of body temperature. This is mainly done by the skin.

* The regulation of blood glucose level. This is mainly done by the liver and the insulin secreted by the pancreas.

Mechanisms of homeostasis: feedback

When a change of variable occurs, there are two main types of feedback to which the system reacts:

* Negative feedback is a reaction in which the system responds in such a way as to reverse the direction of change. Since this tends to keep things constant, it allows the maintenance of homeostasis. For instance, when the concentration of carbon dioxide in the human body increases, the lungs are signalled to increase their activity and expel more carbon dioxide.

* In positive feedback, the response is to amplify the change in the variable. This has a de-stabilizing effect, so does not result in homeostasis. Positive feedback is less common in naturally occurring systems than negative feedback, but it has its applications. For example, in nerves, a threshold electric potential triggers the generation of a much larger action potential.

Ecological homeostasis

In the Gaia hypothesis, James Lovelock stated that the entire mass of living matter on Earth (or any planet with life) functions as a vast organism that actively modifies its planet to produce the environment that suits its needs. In this view, the entire planet maintains homeostasis. Whether this sort of system is present on Earth is still open to debate. However, some relatively simple homeostatic mechanisms are generally accepted. For example, when atmospheric carbon dioxide levels rise, plants are able to grow better and thus remove more carbon dioxide from the atmosphere. When sunlight is plentiful and atmospheric temperature climbs, the phytoplankton of the ocean surface waters thrive and produce more dimethyl sulfide , DMS. The DMS molecules act as cloud condensation nuclei which produce more clouds and thus increase the atmospheric albedo and lower the temperature of the atmosphere.

Biological homeostasis

Homeostasis is one of the fundamental characteristics of living things. It is the maintenance of the internal environment within tolerable limits.

The internal environment of a living organism's body features body fluids in multicellular animals. The body fluids include blood plasma, tissue fluid and intracellular fluid. The maintenance of a steady state in these fluids is essential to living things as the lack of it harms the genetic material.

With regard to any parameter, an organism may be a conformer or a regulator. Regulators try to maintain the parameter at a constant level, regardless of what is happening in its environment. Conformers allow the environment to determine the parameter. For instance, endothermic animals maintain a constant body temperature, while ectothermic animals exhibit wide variation in body temperature.

This is not to say that conformers may not have behavioral adaptations that allow them to exert some control over the parameter in question. For instance, reptiles often sit on sun-heated rocks in the morning to raise their body temperatures.

An advantage of homeostatic regulation is that it allows the organism to function more effectively. For instance, ectotherms tend to become sluggish at low temperatures, whereas endotherms are as active as always. On the other hand, regulation requires energy. One reason snakes are able to eat just once a week is that they use much less energy for maintaining homeostasis.

homeostasis in the human body

All sorts of factors affect the suitability of the human body fluids to sustain life; these include properties like temperature, salinity, and acidity, and the concentrations of nutrients such as glucose, various ions, oxygen, and wastes, such as carbon dioxide and urea. Since these properties affect the chemical reactions that keep bodies alive, there are built-in physiological mechanisms to maintain them at desirable levels.

However, it should be noted that homeostasis is not the reason for these ongoing unconscious adjustments. homeostasis should be thought of as a general characterization of many normal processes in concert, not their proximal cause per se. Moreover, there are numerous biological phenomena which do not conform to this model, such as anabolism.

Other fields

The term has come to be used in other fields, as well.

An actuary may refer to "risk homeostasis", where (for example) people who have anti-lock brakes have no better safety record than those without anti-lock brakes, because they unconsciously compensate for the safer vehicle via less-safe driving habits.

Sociologists and psychologists may refer to "stress homeostasis", the tendency of a population or an individual to stay at a certain level of stress, often generating artificial stresses if the "natural" level of stress is not enough.

Examples

* Thermal regulation:

o The skeletal muscles can shiver to produce heat if the body temperature is too low.

o Non-shivering thermogenesis involves the decomposition of fat to produce heat.

o Sweating cools the body with the use of evaporation.

* Chemical regulation

o The pancreas produces insulin and glucagon to control blood-sugar concentration.

o The lungs take in oxygen and give off carbon dioxide.

o The kidneys remove urea, and adjust the concentrations of water and a wide variety of ions.

Most of these organs are controlled by hormones secreted from the pituitary gland, which in turn is directed by the hypothalamus.

The scientific name for lung is "pulmo" in Latin.

No, an animal with a backbone and gills but no notochord would not be considered a chordate. Chordates are defined by the presence of a notochord at some stage of their development, along with a dorsal nerve cord, pharyngeal slits, and a post-anal tail.

Feathers have a high number of tiny air pockets, which trap heat and create a barrier against cold temperatures. This structure helps to maintain body heat and provides excellent insulation. Additionally, the structure of feathers prevents air from circulating effectively, further enhancing their insulating properties.

Elderly is typically defined as a person who is 65 years or older. However, this classification can vary based on cultural and societal norms, as well as individual health and functional status.

elder meat is very simple to explain.....it's kind of like a burger,because when your grandparents etc. die most people have a good barbeque...they eat their grandparents.so that's why they are like cows but in a more fart and potatoes kinda way.....

Many elderly people enjoy traditional comfort foods such as soups, stews, and casseroles. Soft and easy-to-chew foods like mashed potatoes, oatmeal, and cooked vegetables are also popular choices. It's important to consider any dietary restrictions or preferences an individual may have.

An elderly person could potentially outrun a tortoise, as tortoises are generally slow-moving creatures.

Yes, a 12 year old can help the elderly by assisting with simple tasks like running errands, reading to them, or keeping them company. It's important for the child to have supervision and guidance from a responsible adult while helping the elderly.

Nowadays, I would say that 60+ would be considered elderly.

A person who studies languages is called a linguist.

Binocular stereoscopic vision allows primates to perceive depth and distance accurately, which is essential for tasks such as navigating through the environment, hunting, and identifying potential threats. This type of vision also enhances hand-eye coordination, facilitates object manipulation, and aids in social interactions through recognizing facial expressions and gestures.

To assess someone's integrity, you can use various methods such as reviewing their past behavior through background checks, asking situational questions in interviews to gauge their ethical decision-making, seeking references from previous employers or colleagues, and observing their actions and consistency over time. It's important to remember that integrity is a trait demonstrated over the long term, so multiple methods may be needed to get an accurate assessment.

No, hermaphrodites cannot self-impregnate. Although they have both male and female reproductive organs, fertilization still requires genetic material from another individual to produce offspring. Hermaphrodites can still reproduce through cross-fertilization with another individual.

Albino mice used for research purposes are typically bred to be a specific weight range, usually between 20-30 grams. This is considered the optimal size for conducting experiments due to ease of handling and consistency in results.

Yes. However, it is hereditary. Meaning it's offspring will most likely have the very same heath issues/concerns.

a newborn baby=)