Answer:
The statement is true.
Explanation:
When a chemical substance is dangerous for people's health, we speak of a toxic risk. This risk can materialize if exposure to the chemical agent is not controlled. Toxic substances are those substances capable of causing harmful effects in a living organism when they come into contact with it or when ingested, intentionally, accidentally, or deliberately. The toxic risk of a chemical product depends on two factors: the toxicity and the absorbed dose, where a series of factors influence: composition, properties, concentration, duration of exposure, route of entry into the organism and workload.
Superantigens cause the stimulation of T cells to overproduce cytokines.
- Some pathogens in an unusual way take over the immune system and mislead it by interfering in the adaptive immune system.
- Instead of processing by APC (Antigen Presenting Cells), superantigen is directly bonded to MHC-II (Major histocompatibility complex) and TCR (T cell receptor) for a longer period than normal.
- As a result, about 20% of T cells are stimulated to produce cytokines such as interleukin-2 (IL-2), interferon-γ (INF-γ), and tumor necrosis factor α (TNF-α) known as Cytokine storm. Thereby, affected individuals experience some adverse symptoms like toxic shock syndrome and rheumatic fever.
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answer to question 6: Plants absorb energy from the sun and use photosynthesis to make sugars.. Animals have mitochondria that use the sugars provided by plants to produce their own cellular energy.
Answer to 7: Humans don't take their energy from the sun directly, they eat plants and use the sugars and starches in those plants for their chemical energy. Animals also eat plants and then we eat those animals as a source of amino acids that are then used to build and repair our body.
answer to 8:i dont know if this answer will help or not sorry: The relationship between photosynthesis and cellular respiration is such that the products of one system are the reactants of the other. Photosynthesis involves the use of energy from sunlight, water and carbon dioxide to produce glucose and oxygen. Cellular respiration uses glucose and oxygen to produce carbon dioxide and water. To emphasize this point even more, the equation for photosynthesis is the opposite of cellular respiration.
9: they need energy to stay alive and grow
The answer is 5:1 because you can evenly divide each side by five
<span>Well, one is hydrophobic and one is hydrophilic so that causes a big effect in the way that the amino acids are grouped together or spread out</span>
