Question

question 5 of 25
why did seed production help plants move to land?
a. seeds allowed them to become sporophytes.
b. seeds made it possible to transmit water through leaves.
c. seeds allow gametes to live longer without water.
d. seeds made plants able to reproduce with deuterostomes.

Explanation:

Seeds contain a dormant embryo (a young sporophyte). This allows plants to have a more independent and protected stage in their life cycle. Before seed - producing plants (like gymnosperms and angiosperms), plants (such as mosses and ferns) had a more water - dependent life cycle. The seed provides a means for the plant to disperse and establish in terrestrial environments. It is a key adaptation that helped plants move to land.

• Option B: Seeds are related to the sporophyte stage. The production of seeds allows for a more dominant and independent sporophyte generation.
• Option C: Transmitting water through leaves is related to structures like xylem and stomata, not directly to seed production.
• Option D: Gametes are part of the sexual reproduction process (sperm and egg). Seeds are not directly about gamete longevity without water. Gametes in seed - plants are protected within the reproductive structures (pollen and ovules), but the main advantage of seeds for land colonization is the sporophyte - containing seed.
• Option E: Deuterostomes are a group of animals (like chordates, echinoderms). Plants do not reproduce with deuterostomes.

Answer:

A. Seeds allowed them to become sporophytes.