Which one of the following is the only conducting tissue in non-flowering plants?(a) xylem vessels (b) sieve tubes (c) companion cells (d) tracheids
(d) tracheids
Tracheids are elongated non-living cells which are present in the xylem of vascular plants, but they are only water-conducting tissue in non-flowering plants.
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- Which of the following plants are non-flowering and reproduce by the method of spore formation?a. Sweet potato b. Asparagus c. Ferns d. Mosses(a) Only a and b(b) Only a and c(c) Only a and d(d) Only b and c(e) Only c and d
- One of the following is not a constituent of blood. This one is:(a) red blood cells (b) white blood cells (c) sieve plates (d) platelets
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- What is xylem tissue? Name the two kinds of cells in xylem tissue. State whether these cells are living or dead.
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