Multiple Choice
In the life cycle of ferns, the multicellular female gametangium (the sex organ that contains an egg) is a(n) __________.
28. Plants
Seedless Vascular Plants
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In sporophyte ferns, the leaves are __________.
A
microphylls
B
protonemata
C
sporangia
D
blades
E
megaphylls
Verified step by step guidance1
Understand the structure of a fern: Ferns are vascular plants that have a life cycle involving both sporophyte and gametophyte generations. The sporophyte is the dominant generation in ferns.
Identify the function of leaves in sporophyte ferns: In the sporophyte generation, ferns have leaves that are responsible for photosynthesis and reproduction.
Learn about leaf types: Microphylls are small leaves with a single vein, typically found in lycophytes. Megaphylls are larger leaves with multiple veins, common in ferns and other vascular plants.
Recognize the term 'megaphylls': In sporophyte ferns, the leaves are called megaphylls due to their complex vein structure and larger size compared to microphylls.
Differentiate between the options: Protonemata are structures found in mosses, sporangia are structures that produce spores, and blades refer to the flat part of a leaf. Megaphylls are the correct term for fern leaves in the sporophyte stage.
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