hi!
looking at the answers you know its not a or d, not being a because a shadow is made to look a little bigger then the object due to the way the light is hitting the object and it is not d because all shadows are visible.
my guess would be c because shadows apper tall and skinny i hope you have a great day ^^
When an antigen is bound to a class i mhc molecule, it can stimulate a cytotoxic T cell
A transmembrane chain, which is produced by a class I MHC gene, plus a tiny extracellular protein known as 2-microglobulin make up class I MHC proteins. The gene that encodes the 2-microglobulin does not belong to the MHC gene cluster, and it does not traverse the membrane.
The cytotoxic T cell interacts with a virally infected cell via its T cell receptor and the MHC class one protein on the virally infected cell, which is the interaction between the MHC class one protein and the cytotoxic T cell. The identification of targets for destruction by a cytotoxic T cell depends on this interaction between the T cell receptor and MHC class one.
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In the Bowman's capsule, blood filtration in the kidney nephron begins.
<h3>The function of Bowman's Capsule:</h3>
The glomerulus is protected by a two-walled pouch called Bowman's capsule. Bowman's space is the term for the area between the capsule's walls. The glomerular capsule, the Malpighian capsule, and the renal corpuscular capsule are additional names for Bowman's capsule.
Bowman's capsule surrounds the glomerular capillary loops and participates in the filtration of blood from the glomerular capillaries. Additionally serving a structural purpose, Bowman's capsule generates a urinary passageway that allows filtrate to enter the nephron and go to the proximal convoluted tubule.
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Depends on what you consider "Large". Usually what we consider large amounts, would just make us urinate as it is not water that we need and so would filter it out.
However if you were to say ingest such an amount that it has become toxic, you run the risk of a very dangerous condition called Hyperhydration or Water Intoxication. Under most normal circumstances water and salt are present in cells and the blood. If you remember; water travels through osmosis, or from a higher to lower concentration across a semipermeable membrane. Salt helps to maintain the concentration. However if you drink so much water that it would be considered "toxic" the water that would eventually find it's way into your blood would try to balance with the cells, which begin to absorb so much water that they swell, therefore causing swelling to the body's tissues and organs.
The dangerous bit is when the brain begins to swell. Symptoms such as <span>headache, personality changes, changes in behavior, confusion, irritability, and drowsiness. These are sometimes followed by difficulty breathing during exertion, muscle weakness & pain, twitching, or cramping, nausea, vomiting, and thirst, begin to manifest. The dangerous bit is when the swelling compresses the brain to such a degree it crushes the brain stem and herniates through the foramen magnum. The brain stem or Medulla Oblangata is responsible for the processes keeping you alive, and if it's crushed your heart rate, blood pressure, and breathing will become compromised, a recognizable feature we EMT's look out for called Cushing's Triad. This is mostly irreversible and will lead to neurogenic shock, coma, and then death.
The important lesson, is to always take thing in moderation.</span>
Answer:
Most plants absorb water through the roots. Land plants get almost all the water they need from the soil. The amount of water available in the soil varies according to its porosity and its degree of desiccation. A large proportion of water is retained by cohesion forces between the particles. When the water is in the roots it moves inside the plant through the xylem. The xylem is the transport system that carries water to the entire plant.
Explanation:
The xylem connects all parts of the plants (from the roots to the stems and from there to the leaves). The water in the xylem creates a gigantic chain of molecules that adhere to each other, just like they adhere to the xylem. For plants to transport water from roots to leaves and use it in other functions, other structures called stomata are required. Stomata are small pores in leaves that plants can open and close as needed. If they open, the water moves out of the stomata and evaporates into the air. This occurs because the water molecules diffuse, from the humid air inside the leaf, to the much drier air surrounding the leaf. The loss of water through the stomata together with the high cohesion of the water particles and the resistance of the root "stress" the water column. This causes the water potential of the roots to decrease and the surrounding water enters the plant.Each stoma is made up of two occlusive cells. When these cells are turgid, a hole opens between them; when the cells relax, the hole disappears. The turgor pressure depends directly on the inlet or outlet of the water. This movement, in turn, depends on the concentration of solutes within the cell.