Complex tissue in plants have

Tracheids, vessels, xylem fibres and xylem parenchyma are components of
1. Simple tissue
2. Xylem
3. Sclereids
4. Pith

  _________ are commonly found in the fruit walls of nut.

The presence of _________ is characteristic feature of angiosperms.

In flowering plants which of the following are main water transporting element
1. Tracheids
2. Vessels
3. Both A and B
4. None of the above

Dead cell without protoplasm is ___________.
1. Sclerenchyma
2. Tracheids
3. Parenchyma
4. Both A and B

Elongated cells with thick and lignified walls and tapering ends is a characteristic feature of
1. Xylem parenchyma
2. Xylem fibres
3. Tracheids
4. Vessels

Xylem parenchyma cells are made up of

1. Cellulose

2. Hemicellulose

3. Both 1 and 2

4. None of the above

Central cavity is found in