Answer:
Convection
Explanation:
Definition
convection- the movement caused within a fluid by the tendency of hotter and therefore less dense material to rise, and colder, denser material to sink under the influence of gravity, which consequently results in transfer of heat.
Probably the animals and what the animals live in.
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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Its A directional because <span>In directional selection, selection pressures favor an extreme, in this case, short </span>plants<span>.tall</span>
Answer:
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