Immunity how does our immune system protect us from disease pogil answers
Our immune system protects us from foreign and damaging organisms through our antigens. Once a pathogen (damaging cells/harmful) is detected within the body, the immune system deploys white blood cells to defend the host and eliminate the threat. The Immune System acts as our body’s security system.
The immune system is a complex network of cells, tissues, and organs that work together to protect the body from harmful pathogens. It includes key components such as white blood cells, antibodies, and the complement system.
Explanation:The immune system is a complex network of cells, tissues, and organs that work together to protect the body from harmful pathogens, such as bacteria, viruses, and parasites. its components are -
White blood cells: These cells are the main players in the immune system. They include neutrophils, macrophages, and lymphocytes.Antibodies: Antibodies are proteins produced by B cells and play a critical role in identifying and neutralizing harmful pathogens.Complement system: The complement system is a group of proteins that work together to enhance the immune response.The immune system has two main phases: the innate immune response and the adaptive immune response. The innate immune response is the first line of defense and provides immediate, nonspecific protection. It includes physical barriers (e.g., skin), chemical barriers (e.g., stomach acid), and certain white blood cells. The adaptive immune response is specific to a particular pathogen and develops over time. It involves the production of antibodies and memory cells that provide long-term immunity. Our immune system is crucial for protecting us from diseases. It employs a network of cells, tissues, and organs to identify and eliminate harmful pathogens. Understanding how our immune system works can help us make informed choices to stay healthy.
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The patient was treated for a skin infection caused by an infestation with the itch mite. this condition is called
Neutron stars, smaller than white dwarfs, are thought to be remnants of _____.
A) black holes
B) red giants
C) nucleosynthesis
D) supernova events
Answer:
D
Explanation:
How does communication in the endocrine system differ from communication in the nervous system?
Which structure is involved with maintaining the position of the organelles within a cell? intermediate filament golgi apparatus mitochondrion endoplasmic reticulum ribosome?
what shape would be the most desirable for larger cells?
Final answer:
The most desirable shape for larger cells is one that maximizes surface area to volume ratio for efficient exchange of nutrients and waste, often a sphere. Various cell shapes can also result from functional requirements or physical constraints influencing cellular function.
Explanation:
The most desirable shape for larger cells would be one that maximizes the surface area to volume ratio, to ensure efficient exchange of nutrients and waste. Cells that are too large may not be able to support the rate of diffusion required for their volume due to a decreased surface area-to-volume ratio. Spherical shapes tend to be the most efficient in terms of surface area-to-volume ratio because as the cell increases in size, a sphere's surface area increases as the square of its radius, while its volume increases as the cube of its radius.
Considering two cells, a spherical cell with a diameter of 5 µm would likely exchange nutrients and wastes more efficiently than a cubed-shaped cell with a side length of 7µm. The surface area-to-volume ratio for a sphere is higher than that of a cube, resulting in shorter distances for nutrients and wastes to travel to and from the cell's periphery, leading to faster molecular exchange rates.
Cell shapes can also be affected by physical forces and functional requirements. For example, red blood cells adopt a biconcave disc shape to optimize the exchange of oxygen, whereas nerve cells have long extensions to aid in signal transmission. Thus, while most cells approximate a sphere for efficiency, different shapes can arise from the cell's necessity to fulfill specific roles within an organism.
Which change is most likely to cause a cold spell in Minnesota?
A. The trade winds move north.
B. The polar jets stream moves south.
C. The doldrums move south.
D. The subtropical jet stream moves north.
When assessing the chest of an adult female critical trauma patient, the emt should inspect/palpate for ___________ in addition to crepitations and deformities?
_____ act on the cns to suppress or slow bodily processes and reduce overall responsiveness.
Should we not assume that just as the eye, hand, the foot, and in general each part of the body clearly has its own proper function, so man too has some function over and above the function of his parts?
When a child has a schema for dogs that includes all animals with four legs and changes it because he/she learns that cats also have four legs she is using?
Living creatures which can be seen only by using a microscope are called what ?
The process by which our sensory receptors and nervous system receive and represent stimulus energies from our environment
Answer:
Sensation
Explanation:
A P E X
The structural unit of compact bone (osteon) resembles the growth rings of a tree trunk. the structural unit of compact bone (osteon) resembles the growth rings of a tree trunk.
a. True
b. False
Osteons, or Haversian systems in compact bone, resemble the concentric growth rings in a tree trunk. They provide structural strength and help in the body's mineral balance.
Explanation:The statement that the structural unit of compact bone (osteon) resembles the growth rings of a tree trunk is true. Osteons, or Haversian systems, are cylindrical structures that consist of concentric rings, called lamellae, of compact bone tissue that encircle a central canal (the Haversian canal). This structure is similar to the concentric growth rings seen in a tree trunk. Within the osteon, the lamellae contain the bone's blood supply. Just as growth rings in a tree indicate its age and environmental history, osteons provide structural strength to bones and help in the body's mineral balance.
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Yes, the osteon of compact bone does resemble the growth rings of a tree trunk. This structure provides strength and support to the bone and can provide information about an individual’s health and history.
Explanation:The statement that the structural unit of compact bone (osteon) resembles the growth rings of a tree trunk is true. The osteon, or the Haversian system, is the fundamental functional unit in compact bone. Each osteon is circular and resembles a set of concentric rings, similar to the rings in a tree trunk, which represent growth over time. This structure provides strength and support to the bone. Just as tree rings can provide information about a tree’s life and environmental conditions, the structure and development of osteons can tell a lot about an individual’s health and history.
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Which of these describes an ideal environment for bacterial growth?
The study of the structure function and diseases of the muscles is called
Which is not true of laterite soils?
A. They are enriched in iron oxide.
B. They are red in color.
C. They form in the wet tropics.
D. They are very productive agriculturally.
Please explain your answer! :)
Answer:
D. They are very productive agriculturally.
Explanation:
Laterite soils are of rusty red color. Their red appearance is because of the fact that they have very high content of iron and iron oxide. They are formed in wet tropics naturally. They are not at all suitable for agriculture because they are highly acidic in nature. Not only this but also, they have very low water retention capacity. These two properties make them unsuitable for cultivation.
A client with a history of advanced liver disease comes to the emergency department (ed) with dehydration. white blood cell count shows elevation in bands and neutrophils. when preparing to catheterize the client, what color urine does the nurse anticipate will drain
_____ is a process that helps fuel your metabolism.
Deoxidation
Oxidation
Glycolysis
Hydrolysis
The correct option is B. Oxidation is a process that helps fuel your metabolism.
Oxidation is a metabolic process where nutrients like carbohydrates, fats, and proteins are broken down to release energy in the form of ATP through reactions involving oxygen.
This process fuels metabolism by transferring electrons from these nutrients to oxygen, generating ATP in cellular respiration.
The other options are incorrect because:
A. Deoxidation is not a metabolic process; refers to removal of oxygen.C. Glycolysis is an initial breakdown of glucose, not directly fueling metabolism.D. Hydrolysis is breakdown of molecules by water, not directly related to metabolic fueling.The correct question is:
_____ is a process that helps fuel your metabolism.
A. Deoxidation
B. Oxidation
C. Glycolysis
D. Hydrolysis
Plant and animal cells can A) make ATP. B) make starch. C) make chitin. D) make cellulose.
A bread whose texture is too dense was probably made from a dough containing too __________
The blood vessel that brings blood to the kidney directly from the aorta is the __________.
The __________ reflex involves activating muscles contralateral to the receptor.
The method in which some trees in an area of forest are cut while others are not is called _____. selective cutting pest management strip cropping clear cutting
selective cutting is the answer hope this helps you
Which of the following refers to changes in species characteristics over time?
evolution
interdependence
metabolism
reproduction
Evolution
.................................................
How is it possible for percolating groundwater to remove mineral material as well as deposit it?
Final answer:
Groundwater can both remove and deposit mineral material, depending on its flow and the surrounding materials.
Explanation:
Groundwater can both remove and deposit mineral material through various processes. When groundwater flows through porous materials like sand and gravel, it can erode and dissolve minerals, carrying them away. This is how groundwater can remove mineral material. On the other hand, when the flow of groundwater slows down or stops, the minerals it carries can precipitate out and get deposited in the pores or fissures of the surrounding materials. This is how groundwater can deposit mineral material.
Compare and contrast the structure of a DNA nucleotide and an RNA nucleotide.
DNA and RNA nucleotides differ in their sugar molecules, DNA has deoxyribose while RNA has ribose. DNA is double-stranded while RNA is single-stranded. DNA has thymine as one of its bases while RNA has uracil.
Explanation:The structure of a DNA nucleotide and an RNA nucleotide differ in several ways. Both DNA and RNA nucleotides have three components: a sugar molecule, a phosphate group, and a nitrogenous base. However, the sugar molecule in DNA is deoxyribose, while in RNA it is ribose. Additionally, RNA is single-stranded, while DNA is double-stranded. Finally, the nitrogenous bases in DNA are adenine, guanine, cytosine, and thymine, while in RNA, thymine is replaced by uracil.
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"where does the energy for the calvin cycle come from?"
Final answer:
The Calvin cycle uses ATP and NADPH, which contain energy from sunlight, to turn carbon dioxide into carbohydrates, such as glucose, for long-term energy storage.
Explanation:
The energy for the Calvin cycle is derived primarily from ATP and NADPH, which are compounds rich in chemical energy. These molecules are produced during the light-dependent reactions of photosynthesis.
The ATP and NADPH, carrying energy captured from sunlight, are utilized by the Calvin cycle to convert carbon dioxide into carbohydrate molecules, such as glucose, which serve as long-term energy storage for the cell. Specifically, the Calvin cycle harnesses the energy in the form of 6 ATP and 6 NADPH to produce Glyceraldehyde-3-phosphate (GA3P) molecules that will eventually form the backbone of carbon atoms for carbohydrates, primarily glucose. Thus, the Calvin cycle effectively converts the short-lived energy stored in ATP and NADPH into a more stable form of energy in carbohydrates, a process essential for life on Earth.
Stages of mitosis and what happens in each stage.
How is the concentration of animal bones explained? (movie: surviving africa)?