DENDROLOGY

DENDROLOGY AND SOCIETY

FAMILIES OF ANGIOSPERMS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following characteristics are NOT found in all vascular plants?
A
Dominant sporophyte generation
B
Production of seeds
C
Lignified xylem
D
Phloem tissue
Explanation: 

Detailed explanation-1: -So, the correct option is ‘Development of seeds’.

Detailed explanation-2: -Seedless vascular plants reproduce through unicellular, haploid spores instead of seeds; the lightweight spores allow for easy dispersion in the wind. Seedless vascular plants require water for sperm motility during reproduction and, thus, are often found in moist environments.

Detailed explanation-3: -Modern-day seedless vascular plants include club mosses, horsetails, ferns, and whisk ferns.

Detailed explanation-4: -Three types of vascular plants that are not seed-bearing are ferns, horsetails and club mosses. There are several common characteristics of plants in this group, including the presence of vascular tissue, roots and leaves.

There is 1 question to complete.