EVERYDAY SCIENCE

Previous
Next

SCIENCE

BOTANY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
These are all characteristics of ____:They lack a specialised vascular systemThey lack true roots, stems and leavesThey are small in sizeExamples:algae and bryophytes
A
Non-vascular Plants
B
Vascular Plants
C
Either A or B
D
None of the above
Explanation: 

Detailed explanation-1: -Algae. Algae are a large group of generally aquatic plants. Like bryophytes, algae are nonvascular: They lack the xylem and phloem tissues that transport fluids and nutrients internally. They do not have leaves, roots or flowers, nor do they have rhizoids or leaflike structures like some nonvascular plants.

Detailed explanation-2: -Vascular plants (tracheophytes) differ from the nonvascular bryophytes in that they possess specialized supporting and water-conducting tissue, called xylem, and food-conducting tissue, called phloem.

Detailed explanation-3: -Nonvascular plants are called bryophytes. Nonvascular plants include liverworts, hornworts, and mosses. They lack roots, stems, and leaves. Nonvascular plants are low-growing, reproduce with spores, and need a moist habitat.

Detailed explanation-4: -Mosses are non-vascular plants with about 12, 000 species classified in the Bryophyta. Unlike vascular plants, mosses lack xylem and absorb water and nutrients mainly through their leaves.

There is 1 question to complete.
Previous
Next