explain the types of growth producing substance, present in living beings.
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Explanation:
Growth varies in plants and animals. While animals exhibit definite growth and animals cease to grow after a certain age, plant exhibit indeterminate growth and the cells continue to divide during the entire lifespan. If we consider unicellular organisms, they tend to grow in size by cell division.
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Explanation:
Two types of substances– protoplasmic and apoplasmic are formed for growth. Protoplasmic substances are constituents of living matter. They bring about the increase in bulk of protoplasm. Apoplasmic substances are non-living substances, e.g., cell wall, matrix, etc.
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