Bordered pits are found in:
Correct answer: B. Vessel wall
- A. Sieve cells
- B. Vessel wall
- C. Companion cells
- D. Sieve tube wall
Explanation
Bordered pits are specialized structures that allow water to pass between cells in the xylem, the water-transporting tissue of plants. They are found in the walls of vessels, which are long, hollow cells that transport water up the plant.
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Embryonic development covers fertilization, cleavage, formation of the blastula and gastrula, germ layers, organ formation and differentiation. Regeneration describes the replacement of lost tissues or body parts, whereas ageing involves gradual cellular and physiological changes linked to reduced repair, altered metabolism and declining organ function.
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