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What is a signal to which an organism responds?
A signal to which an organism responds is called a stimulus. It can be any environmental change or cue that triggers a response or behavior in an organism. This response can range from simple reactions like moving away from a harmful substance to complex behaviors like mating rituals in animals.
What is the muscle fiber or gland cell that responds to the efferent impulses?
The muscle fiber or gland cell that responds to efferent impulses is known as the effector. Effector cells receive signals from motor neurons and carry out the response, such as contracting or secreting a substance. This is part of the efferent pathway in the nervous system that controls the body's actions and functions.
What substance excites the nervous system?
Caffeine is a substance that can excite the nervous system by blocking the neurotransmitter adenosine, which promotes relaxation and sleepiness. This can lead to increased alertness and improved focus.
Which phrase does not describes a way the human body responds to fight disease?
"The body becomes transparent" does not describe a way the human body responds to fight disease. The body's responses to fight disease include producing antibodies, increasing white blood cell count, and triggering inflammation.
What is he invasion of the body by a disease producing organism?
A disease producing organism is a pathogen. An invasion of the body by a pathogen is an infection. Although an infection is a generalized name for the body's response to any invasion by any pathogen.
Immunity occurs when the stystem recognizes a foreighn substance and responds by producing?
Lymphocytes .
What substance responds to injury infection or allergy by producing and releasing substances including heparin and histamine?
mast cells
Why is immunity a good thing?
Immunity Is A Good Thing Because It Responds To Injuries Or Infections.
How body responds when dead and weakened microbes are introduced in the human body?
it will reduce the immunity
In allergies the body responds to a harmless substance as if it were a?
a pathogen
What are the Advantage and disadvantage of innate immunity?
Advantage is that it gives a specific response. In a secondary exposure it responds so quickly you may not even feel sick. It is able to retain a long term memory against that specific pathogen as well. Disadvantage is that primary exposure it takes 1-2 weeks to start producing a response against a foreign pathogen. Also it is possible for your adaptive immunity to attack self cells, also called autoimmunity.
What is negative immunity?
Negative immunity refers to the phenomenon where the immune system responds inadequately or not at all to certain pathogens or antigens, leading to an increased susceptibility to infections. This can occur due to various factors, including genetic defects, immunosuppressive conditions, or the effects of certain medications. Unlike typical immunity, which protects the body against disease, negative immunity can result in a failure to recognize and combat harmful invaders effectively.
What are two ways to gain active immunity?
Active immunity can be gained through natural infection, where the body produces antibodies in response to exposure to a pathogen. Alternatively, it can be acquired through vaccination, which introduces a harmless form of the pathogen or its components, prompting the immune system to generate a protective response without causing the disease.
Are vaccines associated with innate or adaptive immunity?
Adaptive immunity. Innate immunity provides a very basic general response against pathogens. It responds in the same manner. Adaptive immunity will provide a very specific response as well as retain memory of how to respond next time it encounters the same pathogen. That is the foundation for vaccinations. You introduce to your body in a safe way (destroyed virus) a pathogen that your body can kill so that upon secondary exposure it is well equipped to defend against it.
How is a vaccine able to produce immunity?
A vaccine is a substance that contains an anti-gen to which the immune system responds. Antigens can be derived from living but attenuated (weakened) organisms, dead organisms, or parts of organisms."When the vaccine or toxoid is administered, the immune system recognizes it as foreign and produces antibodies, or sometimes cytotoxic T cells, and memory cells.This immune response is the same as the one that occurs during the course of a disease. The disease itself does not occur either because whole organisms are not used or because they have been sufficiently weakened to have lost their virulence. In other words, vaccines retain important antigenic properties but lack the ability to cause disease.
What is active acquired immunity?
Active acquired immunity occurs when you get an infection by a pathogen (bacteria, virus) and your body responds and removes the pathogen and also your body makes "memory" cells. These cell remember this pathogen and when it enters your body again you remove it immediately. You are now immune to it. You usually don't notice this.
Difference between innate and acquired immunity?
The way in which inherited and acquired immunities differ is in the way the immune system responds to infection. With inherited immunity, the body does not create antibodies that are particular to a specific pathogen unlike acquired immunity.
