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Multiple Choice
Megaphylls are found in which of the following groups of land plants?
A
Liverworts
B
Hornworts
C
Mosses
D
Ferns
Verified step by step guidance
1
Step 1: Understand the term 'megaphylls'. Megaphylls are large leaves with a complex vascular system, typically associated with plants that have a more advanced vascular structure. They are distinct from microphylls, which are smaller leaves with a single vein.
Step 2: Review the characteristics of the plant groups listed in the question. Liverworts, hornworts, and mosses are non-vascular plants, meaning they lack a true vascular system and do not produce megaphylls.
Step 3: Recall that ferns are vascular plants. They possess a well-developed vascular system, including xylem and phloem, which supports the development of megaphylls.
Step 4: Connect the presence of megaphylls to the evolutionary advancement of vascular plants. Ferns, as part of the vascular plant group, are known for their large, complex leaves (megaphylls), which are adapted for efficient photosynthesis.
Step 5: Conclude that among the groups listed, ferns are the only plants that produce megaphylls, as they are vascular plants with the necessary structures to support these complex leaves.