The most specific of the body's defenses against a particular disease is:     physical barrier     mechanical defense     chemical defenses     T-cell, B-cell system

Q: Macrophage, when they encounter an antigen or pathogen release:     Histamines.…

A: INTRODUCTION Macrophages These are cells that helps in phagocytosis.

Q: Many human epithelial cells produce sticky mucus. Which of the following statements best describes…

A: The immune system includes three lines of defense against foreign body: physical and chemical…

Q: Part of the complement system of defense is opsonization. This process coats the pathogen exterior…

A: The system that acts as a barrier and protects us against the disease-causing organisms or pathogens…

Q: Which of the following is NOT a "professional" antigen-presenting cell? Macrophage Natural Killer…

A: A cell that displays antigen bound by major histocompatibility complex (MHC) proteins on its surface…

Q: Which one of the following acts as the “alarm signal” to activate the body’s adaptive immune system…

A: BASIC INFORMATION IMMUNE SYSTEM  It defends our body from the foreign particles which can cause…

Q: The type of cell which produces antibody is ___.     T-cell     ergogenic cell     B-cell…

A: Introduction: One of the essential categories of immunological cells in the body are lymphocytes.…

Q: Which of the following is a critical feature ofimmediate hypersensitivity?a. inflammationb.…

A: Immediate hypersensitivity or type I hypersensitivity response is the binding of allergen-specific…

Q: Epithelial tissue covers surfaces and lines cavities. This is the ___ line of defense.…

A: Immune system is responsible for killing the foreign body present in our body.

Q: Classify each item as a first, second, or third line of defense. First Line of Defense Eosinophils…

A: The first line of defence includes physical and chemical barriers that are always ready and prepared…

Q: True or False Immune system works against invading microbes by the antigen-antibody reaction.

A: Introduction  Our immune system plays key role in defence against harmful foreign particles be it…

Q: Suppose that an individual's arm is cut, and because of this injury, bacteria are able to gain entry…

A: The immune system is a host defense system comprising many biological structures and processes…

Q: What type of molecules are produced by pathogens and stimulate an unregulated T cell activation in…

A: Pathogenicity represents a specialization in a certain microorganism to replicate and damage host…

Q: Which of the following cells is phagocytic?a. plasma cellb. macrophagec. B celld. NK cell

A: Antigen-presenting cells, also called the accessory cells are the cells that display the antigen…

Q: Choose all the answers that are true. The lymphatic system helps to protect the body Inflammation…

A: Lymph does not contain Red blood cells. It only contains White blood cells. The lymphatic system is…

Q: The type of cell which attacks its own body cells which are virally infected or cancerous is ___.…

A: Killer T cells.

Q: The human immune system has a variety of ways to protect us from pathogens, including innate and…

A: The immune system is a collection of biological mechanisms that defends an organism against illness.…

Q: Cells whose main function is in specific defenses, but not in nonspecific defenses include: O…

A: Immunity is of 2 types - specific and non specific.  Specific immunity or defence is the immune…

Q: Reed Sternberg cells are derived from which type of normal cell?   T-cells   B-lymphocytes…

A: Immune system is system which helps our body to fight against the foreign substances which will…

Q: The incorrect statement about B cells in the following is: They can present both protein and…

A:

Q: Which of the following is not characteristic of a response to a previously encountered pathogen?…

A: The first exposure of an individual to a pathogen result in a primary immune response. When a second…

Q: Which of the following is NOT part of the body's third line of defense? Antibodies O Cytotoxic…

A: To combat foreign invaders such as viruses, bacteria, and fungi, the human body does have three…

Q: A certain cell type has existed in the lymphatic system of its vertebrate host's immune system for…

A: The immune system is one of the highly evolved systems of higher animals and plants which aims to…

Q: The body's innate defenses against invading pathogens include a. cytotoxic T cells. b. skin and…

A: Immune system  of the body helps us to fight against invading pathogens . They kills or inhibit the…

Q: The lympathics system includes a network of tissues and organs, which carry the cells and molecules…

A: When any bacteria or viris enters into our body and causes harm to us then our body has some…

Q: What specific cell type is increased in response to a diverse microbiome, that seems to help prevent…

A: Immune system is system which helps our body to fight against the foreign substances which will…

Q: If a human cell contains MHC molecules that are binding pathogen antigens, Group of answer choices…

A: Major histocompatibility complex (MHC) or human leukocyte antigen (HLA) system are part of adaptive…

Q: true or false the innate immunity system requires activation and must be specific to the invading…

A: Immunology is the branch of science which deals with the study of the immune system, immune response…

Q: which of the following is a chemical defense found on all epithelial surfaces of the body?  Lysozme…

A: Lysozyme is a naturally occurring enzyme that is present in the tears,saliva,milk and mucus,etc.…

Q: Which of of the following is NOT typical of B-cells? High numbers circulating in the blood Matures…

A: Introduction B cells, also known as B lymphocytes, are a type of white blood cell of the lymphocyte…

Q: Place each events number listed below on the correct part of the “stages of illness” graph (picture…

A: * Immune cells are of two types  B cells  T cells  * T cells also called thymus cells and B cells…

Q: Allergy to pollen is classified as ________.     an immunodeficiency     a delayed…

A: Our body responds to stimuli. But there are times when the body responds too excessively for a small…

Q: Some immune systems fail to work effectively so the person is less protected than others. This type…

A: Answer : Immunosuppression is the correct option. When immune system fights and loses against any…

Q: Which of the following is LEAST likely to be critical for maintaining tolerance to gut microbiota?…

A: Gut microbiota are the microorganisms, including microscopic organisms and archaea, that live in the…

Q: What type of immune cell kills cells infected with viruses? B-cells killer T-cells memory B-cells…

A: According to guidelines we have to answer the first question only. so please kindly post the…

Q: A disease which is the result of the immune system attacking its own cells is called ___.…

A: Autoimmune

Q: Classify the following images into the type of defense it represents. Interleukin Other cytokines…

A: T cells or T lymphocytes are subpopulations of lymphocytes that are produced in the bone marrow but…

Q: The largest number of immune cells (lymphocytes) Are found in the GALT and MALT. Protect the…

A: Option E

Q: Suppose that an individual's arm is cut, and because of this injury, bacteria are able to gain entry…

A: There are various types of barriers that prevent infection or prevent microbes from entering the…

Q: Individuals with healthy immune systems may become exposed to certain pathogens and develop no…

A: HIV stands for human immunodeficiency virus and AIDS (Acquired Immunodeficiency Virus) is a disease…

Q: The decrease in the strength or power of the body's immune response due to aging is called ___.…

A: Ageing is defined as the continuous process where an person becomes older by nature. The bodily…

Q: The condition where the immune system's ability to fight invaders is decreased is called ___.…

A: Immunology is the branch of science that deals with the body and its immunological response. The…

Q: Place the following steps of an adaptive immune response in order from first to last Place the first…

A: * when an pathogen enters our body then or will cause disease for the first time and again if the…

Q: Antibodies don’t kill any pathogen directly. What are 5 different ways that antibodies help our…

A: An antibody is a glycoprotein. The antibodies are produced in response to an antigenic stimulus.…

Q: Most infections leave behind a tell-tale sign in the blood; what is this tell-tale sign? Interferons…

A: Introduction DNA is the molecular structure that is composed of a pair of polynucleotide chains and…

Q: why does the adaptive defense in the body takes longer than innate defense to become functional?

A: The immune response can either be an innate immune response or an adaptive immune response. Innate…

Q: Which type of molecule recognizes macromolecules that are present in/on certain groups of pathogens?…

A: Introduction: Phagocytosis is a process in which the phagocytic cells engulf the microbes. It is an…

Q: A A person has a disease that has activated the first line of defense. Which of the following…

A: Introduction:-  The innate immune system is a collection of nonspecific defenses found in the human…

Q: Which of the following is NOT part of the body's third line of defense? Cytotoxic T-lymphocytes…

A: Introduction Basically, 3 types of line of defense are found in our body :-  Physical and Chemical…