Question

Which of the following is a major trend in land plant evolution? Group of answer choices the trend toward a gametophyte-dominated life cycle the trend toward smaller size the trend toward a sporophyte-dominated life cycle the trend toward larger gametophytes

Answer 1

Answer:

trend toward a sporophyte-dominated life cycle

the trend toward larger gametophytes

Explanation:

The major trend in the evolution of land plants is the domination of the sporophytic phase in the life cycle and alternation of generation. It also moves towards a larger gametophytes

In lower plants, the gameophyte phase was dominant in the life cycle while in bryophyte, both gametophyte and sporophyte phase are co-dependent.

The sporophyte phase is the diploid phase while the gametophyte phase is the haploid phase.

Also, the gameotyptic stages are quite microscopic (usually in the form of spores) in lower plants while they become bigger in land plants (in the form of ovary and pollen) although with fewer cells.