Question

___ have tubular cells with perforated walls and are living in nature.

Answer 1

Sieve tubes

1. It is found in nature and contains tubular cells with perforated walls.
2. Sieve tube elements, also known as sieve-tube members in plant anatomy, are a kind of elongated cell found in the phloem tissue of flowering plants.
3. The terminals of these cells are connected to other sieve-tube members.
4. Sieve tubes are long, thin tube-like structures.
5. They are made up of elongated, thin-walled cells that are piled on top of each other.
6. Because their end walls are porous, they are known as sieve plates.

Final answer: Sieve tubes have tubular cells with perforated walls and are living in nature.