Multiple Choice
Seed plants reproduce using pollen, which develops into sperm cells. Which of the following structures is responsible for carrying the male gametes in seed plants?
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28. Plants
Seed Plants
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Which one of the following is true of seed plants but not true of seedless plants?
A
The sporophyte is dependent on the gametophyte.
B
The sporophyte is large, and the gametophyte is small and independent.
C
The spore is the main means of dispersing the offspring.
D
A film of water is necessary for sperm to come in contact with eggs.
E
The gametophyte is reduced and dependent on the sporophyte.
Verified step by step guidance1
Understand the life cycle of seed plants: In seed plants, the sporophyte generation is the dominant phase, which means it is the larger and more visible part of the plant's life cycle.
Contrast with seedless plants: In many seedless plants, such as ferns, the gametophyte is independent and can be a significant part of the life cycle.
Identify the dependency relationship: In seed plants, the gametophyte is reduced in size and is dependent on the sporophyte for nutrition and support.
Recognize the dispersal method: Seed plants primarily use seeds for dispersal, whereas seedless plants often rely on spores.
Conclude with the correct statement: The gametophyte is reduced and dependent on the sporophyte in seed plants, which is not the case in many seedless plants.
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