Which gymnosperms has bitegmic ovules, having vessels in xylem?

Angiosperm & gymnosperm resemble in having………….

Each plant or group of plants has some phylogenetic significance in relation to evolution: Cycas, one of the few living members of gymnosperms is called as the relic of past. Can you establish a phlogenetc relationship of Cycas with any other group of plants that justifies the above statement?

Which blood vessel brings waste products into the kidney?

Describe briefly the three physical properties of water which helps in ascent of water in xylem.

Which one of the following types of cells is involved in making of the inner walls of large blood vessels?

Which factors have an effect on the environment?

Give examples of gymnosperms having largest ovule, spermatozoids.

Find the odd man out Tracheids, vessels, companion cells, xylem fibres.