Norah observes some velvet-green growth on a tree trunk. When she picks up one of these plants, she notices that the plant has a flattened body and is attached to the tree trunk by means of root-like structures. What is the plant?

A.) Bryophyte thallus with roots

B.) Bryophyte thallus with rhizoids

C.) Bryophyte stem with roots

Respuesta :

The answer is B.) Bryophyte thallus with rhizoids

Bryophyte has no roots, but have rhizoids. Rhizoids derive from epidermal cells of bryophytes. They are hair-like structures similar to roots of vascular plants. But, they are unicellular structures, unlike roots, which are multicellular. Not only they look alike, but they have similar functions as roots. The functions of rhizoids are the absorption of water and minerals from the soil and a support of the bryophytes.


Answer: b, bryophyte with rhizoids

Explanation: