Question

A. True roots, stem or leaves are not present
B. The female sex organ is known as archegonium
C. Union of gametes occurs in the presence of water

Which of the above-mentioned characters are common in both Thallophytes and Bryophytes?

• A. A and C
• B. A, B, and C
• C. Only A
• D. Only C

Answer 1

The correct option is A A and C

Bryophytes dont's have true roots, They have root-like anchoring structures, called rhizoids. Thallophytes also lack true roots, stems, and leaves.

In the presence of water, male gametes of Bryophytes swim towards the antheridium guided by a sexual hormone (chemical) produced by the archegonium. In thallophytes too, the union of gametes make take place in water.

Archegonium is absent in thallophytes.

Hence the correct option is A.