Cellular differentiation is the process where a cell changes from one cell type to another. Usually, the cell changes to a more specialized type. Differentiation occurs numerous times during the development of a multicellular organism as it changes from a simple zygote to a complex system of tissues and cell types
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plant life cycle. animal life cycle.
flower larva, pupa, egg, and spore
fruit
seed
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Air passage constrict and allow less air into the lungs.
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The tissues are essential because it represents a level of organisation in living organisms. Tissues also function by transporting nutrients and connects bones and other body parts.
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Km is the Michaelis-Menten constant which shows the concentration of the substrate when the reaction velocity is equal to one half of the maximal velocity for the reaction. It can also be thought of as a measure of how well a substrate complexes with a given enzyme, otherwise known as its binding affinity.