Weakened or killed antigens purposefully introduced into the body by medical professionals is known as __________.

Answer:

Circulatory System

Explanation:

Capilaries are tubes that transport blood and provide nutrition through diffusion in tissues. Transporting blood is a function of the circulatory system.

The cardiorespiratory system responds to the demand of exercise with a variety of physiological changes.

These changes include an increase in heart rate, stroke volume, and cardiac output to deliver more oxygen and nutrients to the working muscles. Additionally, the respiratory system responds by increasing the rate and depth of breathing to bring in more oxygen and remove carbon dioxide. This response ultimately improves the body's ability to perform physical activity and meet the demands of exercise. The cardiorespiratory system responds to the demand of exercise with a variety of physiological changes. The respiratory system responds by increasing the rate and depth of breathing to bring in more oxygen and remove carbon dioxide.

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Answer:

can you please translate for us into English

Answer:

Form the cell membrane around food to create a vacuole that is kept separate from the rest of the cytoplasm while enzymes break down the food.

Cells maintain homeostasis without using energy by relying on passive transport processes.

Passive transport mechanisms do not require the input of cellular energy (ATP) and instead rely on the inherent kinetic energy of molecules and the concentration gradients of substances.

One common example of passive transport is simple diffusion, where molecules move from an area of higher concentration to an area of lower concentration until equilibrium is reached.

Similarly, facilitated diffusion utilizes protein channels or carriers to facilitate the movement of specific molecules across the cell membrane without energy expenditure.

Osmosis is another passive process where water molecules move across a selectively permeable membrane to balance the concentration of solutes on both sides.

By utilizing these passive mechanisms, cells can maintain a stable internal environment and achieve homeostasis without the need for energy expenditure.

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The "bad cholesterol" transporter LDL is clinically linked to atherosclerosis and high LDL levels.

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Explanation:

no link. sorry I can't help

Answer:

From longest to shortest, the segments of time are eon, era, period, and epoch.

Explanation:

The HIV group that is responsible for a majority of the HIV infections worldwide is the heterosexual group.

There are more heterosexuals living with HIV than any other group. In some parts of the world, more than half of new HIV infections occur among heterosexuals. As of 2018, 38 million people worldwide were living with HIV, with the majority living in sub-Saharan Africa. HIV/AIDS is a worldwide pandemic that affects millions of people, with some regions of the world being disproportionately affected. While there is no cure for HIV/AIDS, antiretroviral therapy (ART) has been developed to treat the disease and improve the lives of those living with it.

Additionally, prevention methods such as practicing safe sex, using clean needles, and pre-exposure prophylaxis (PrEP) can help to reduce the spread of HIV. Education and awareness are crucial in the fight against HIV/AIDS, and it is important for individuals to take steps to protect themselves and others. So therefore  heterosexual group is the group that is responsible for a majority of the HIV infections worldwide.

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The statement “ The worm is 2 centimeters long” is a simple observation. So, the correct option is A.

Observation is defined as the act or instance of perceiving or perceiving and obtaining information from a primary source. Observation employs the senses in living beings while in science, observation can also involve the perception and recording of data through the use of scientific equipment.

Observations can be of some types such as overt where the subjects know they are being observed or covert which do not know they are being watched. In the above example, the statement which is given as “ The worm is 2 centimeters long” is a simple observation. The observation skills tells us about some objects, events, attitudes and phenomena using one or more senses.

Therefore, the correct option is A.

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Answer:

Should be B.The fossil is younger than the layer of rock it was formed in.

Explanation:

Explanation:

Thanks to photosynthesis, us and many other animals can have oxygen! That's because when plants photosynthesize, they take in carbon dioxide, and the waste is oxygen, which a lot of things need to survive.

The correct answer would be Asthenosphere.

The Asthenosphere is defined as the upper layer of the earth's mantle, below the lithosphere, in which there is relatively low resistance to plastic flow and convection is thought to occur.

I would appreciate brainliest, if not that's ok!

Answer:

an accidental changes the pitch, so that the note is either higher or lower than the original natural note.

Explanation:

I hope this is the symbol you were talking about, hope this helped

Answer:

319 bones are in a dog's body

Answer:

319

Explanation:

Answer:

the internal organ in which the major part of the digestion of food occurs, being (in humans and many mammals) a pear-shaped enlargement of the alimentary canal linking the esophagus to the small intestine.

Answer: The carbon cycle is nature's way of reusing carbon atoms, which travel from the atmosphere into organisms in the Earth and then back into the atmosphere over and over again. Most carbon is stored in rocks and sediments, while the rest is stored in the ocean, atmosphere, and living organisms.

Explanation:

Answer:

Aside from using complex carbohydrates to create the plant's structure, plants store carbohydrates or use them for energy to grow. To use stored carbohydrates, plants take the glucose formed during photosynthesis and combine the carbohydrate with oxygen -- a process called respiration -- to release energy.

Answer:

A. A penguins feet are large and flat with claws for traction on ice

Explanation:

It includes the structure of the feet and the function of it.

The correct sequence of events which take place during production of action potential in inner ear are, vibration of basilar membrane, then movement of stereocilia, then the release of neurotransmitters and finally sending of action potentials to the brain.

There are a certain sequence of events which take place during the production of an action potential in the inner ear. The first step is when the sound waves are able to travel through the cochlea and cause vibrations in the basilar membrane. Then the stereocilia moves back and forth and this movement occurs against the tectorial membrane.

The hair cells then release the neurotransmitters periodically and the final step is the generation and sending of intermittent action potential through the auditory nerve and to the brain.

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Answer:

If wolfs were absent from their environment the food they eat like rabbits for example would be overabundant and eat all the plants and not leave any food left for other animals that need it and those animals would die.

Explanation:

The statement, "the world's natural resource base—the air, water, soil, minerals, and so forth—is essentially finite, or bounded" is true.

A natural resource is a useful or valuable resource that comes from nature. Natural resources include air, water, minerals, soil, animals, and plants, among other things. We depend on natural resources to meet our fundamental needs like shelter, food, and clothing. Natural resources are required for economic growth, health, and social well-being, among other things. However, these resources are not infinite or unlimited in supply.

As a result, the world's natural resource base—the air, water, soil, minerals, and so forth—is essentially finite, or bounded. These finite natural resources are becoming increasingly scarce as the population grows and human demands on natural resources increase. Therefore, the statement, "the world's natural resource base—the air, water, soil, minerals, and so forth—is essentially finite, or bounded" is true.

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The following pedigree of an autosomal recessive disorder, thee probability that iv-1 will be affected can be calculated by analyzing the pattern of inheritance

Autosomal recessive disorders are caused by two copies of a mutated gene, one inherited from each parent. In this pedigree, both parents of iv-1 are unaffected carriers of the mutated gene, which means they each have one normal and one mutated copy of the gene. Since iv-1 inherited one mutated gene from each parent, the probability of iv-1 being affected is 100%.

This is because the mutated gene is the only copy of the gene that iv-1 has, and therefore there is no normal copy to prevent the disorder from manifesting. Therefore, iv-1 will definitely be affected by the autosomal recessive disorder based on the information provided in the pedigree.

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Answer:

end product of carbohydrate digestion

also known as sugar

the end product of photosynthesis

Explanation:

It is a sugar substitute that gives important energy source to living organisms its aswell a component of carbohydrates.

Answer:

Observation

Problem question

Organize data

Hypothesis

Experimentation

Analyze data and and draw conclusions

Report results

Explanation:

The forelimbs of human, cat, whale, and bat represent different adaptations to their respective environments and lifestyles. These adaptations are the result of evolution and natural selection, which have shaped the anatomy and function of these limbs over time.

Forelimbs of human, cat, whale, and bat represent distinct adaptations to different environments and lifestyles, shaped by evolution and natural selection.

Human forelimbs: These are are adapted for bipedalism, which means walking on two legs. As a result, our arms have become shorter and less muscular, with a greater range of motion at shoulder joint for overhead reaching and throwing.

Cat forelimbs: These are adapted for climbing and hunting. They have retractable claws that can be extended for climbing trees or catching prey and powerful muscles in their shoulders and forearms to support weight while climbing or leaping.

Whale forelimbs: These are adapted for swimming in water. They have evolved into flippers, with a streamlined shape and reduced bones and joints to reduce drag and increase maneuverability.

Bat forelimbs: These are adapted for flight. They are elongated and modified into wings with thin membrane of skin stretched between their fingers for creating a large surface area for lift and maneuverability.

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Answer:

i think its b i took the test but i forgot the answer

Explanation:

Following are the possible effects of Water contamination

Germs and contaminants can contaminate drinking water at the source or in the distribution system after the water has been treated. Some of the sources through which dangerous bacteria and chemicals could infiltrate rivers include fertilizers, pesticides, or other chemicals that have been used to treat land close to waterways.

Dangerous microorganisms that may be present in contaminated water include the following:

The spread of diseases like cholera, diarrhea, dysentery, hepatitis A, typhoid, and polio is only one of the problems that contaminated water and poor sanitation may cause. People face avoidable health risks when water and sanitation facilities are insufficient, poorly managed, or unavailable.

Drinking contaminated water can expose one to bacterial, viral, and protozoal illnesses.

Many of these are pathogens, which after consumption can swiftly send a person to the hospital.

The greatest hazard to underdeveloped countries comes from microbial infection. Both a general lack of appropriate water treatment facilities and a constrained supply of clean water contribute to this. Giardia and Cryptosporidium in particular, constitute a menace to contemporary culture.

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Answer:

2,3and 1

is correct order for this question

hope it helps