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qid 3077 · biology
Question: Describe the development of seed.
- The seed evolves from the transformation of the flower's nectar, which solidifies and encases the embryo
- The seed is formed from the stamens
- The seed is a combination of multiple petals that harden over time after the flower has been pollinated
- The seed develops from the petals and sepals
- The ovule with its contained embryo and endosperm becomes the seed; its wall, or integument, thickens to form the tough outer covering of the seed.
- Seeds are formed directly from the pollen grains that land on the stigma of the flower
- The seed develops from the accumulation of nutrients in the pistil without fertilization
- The seed is a result of the withering and falling off of the stigma and style after fertilization
- The seed is produced from the calyx, which encloses the rest of the flower and eventually forms the seed coat
- The seed originates from the fusion of two ovules within the flower after pollination
Our answer: E. The ovule with its contained embryo and endosperm becomes the seed; its wall, or integument, thickens to form the tough outer covering of the seed. Source quote machine-checked (exact quote)
How it was answered
Stored method, replayed by code (kind: formula)
Current source
OpenStax Biology 2e, Section 32.2 Pollination and Fertilization
https://openstax.org/books/biology-2e/pages/32-2-pollination-and-fertilization
“The fertilized ovule forms the seed, whereas the tissues of the ovary become the fruit, usually enveloping the seed.”
Source quote machine-checked (exact quote)
Earlier version (superseded)
No public source has been found for this card yet (2 places checked internally).
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