DENDROLOGY

DENDROLOGY AND SOCIETY

PLANT CLASSIFICATION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Why do nonvascular plants grow close to the ground?
A
to get less sunlight
B
for protection
C
for space
D
to absorb water
Explanation: 

Detailed explanation-1: -Instead of roots, they have hair-like rhizoids to anchor them to the ground and to absorb water and minerals (see Figure below). Bryophytes occupy niches in moist habitats, but, as they lack vascular tissue, they are not very efficient at absorbing water.

Detailed explanation-2: -Mosses and liverworts are small, primitive, non-vascular plants. They lack the conductive tissue most plants use to transport water and nutrients. Instead, moisture is absorbed directly into cells by osmosis.

Detailed explanation-3: -Nonvascular plants do not possess any special organs for the absorption and transport of water; instead, the plant cells absorb water and nutrients from their wet surroundings at their surface by diffusion and pass them from cell to cell.

There is 1 question to complete.