Question

Which groups depend on external source of free water
A) Algae, mosses and ferns
B) Algae, mosses and gymnosperms
C) Mosses, ferns and gymnosperms
D) Only algae and mosses

Answer 1

hiii,

The answer is option A

hope helps

Answer 2

The correct answer is option A

Algae, mosses, and ferns.

• Ferns, algae, and bryophytes(mosses) need water for the movement of male gametes towards the female gamete.

• So these three organisms of the kingdom Plantae depend on external sources of free water for fertilization.

• Algae belong to a group of living things called protists but they are neither plants nor animals instead, they are photosynthetic organisms and can be either unicellular or multicellular.
• Mosses are nonflowering plants with stems and leaves but they do not have true roots.

• Ferns are also nonflowering vascular plants bearing true roots.

• Gymnosperms are not enclosed in an ovary since they are seed-bearing plants.

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