Answer: b. A component of the natural world
Explanation:
The advantage for the reduced gametophytes in seed plant is that they gain nutrients from the sporophytes
Gametophytes are microscopic and have capacity to develop from spores retained in the sporangia of parental sporophyte. This kind of arrangement protect developing gametophyte from environment stress which enable it to gain nutrient from sporophyte.
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You need to collect 50 full length strands of hair from the scalp to use as a sample.
Answer:
are natural or artificial deposits