NEET BIOLOGY

Detailed explanation-1: -Angiosperms are the dominant form of plant life in most terrestrial ecosystems, comprising about 90 percent of all plant species. Most crop and ornamental plants are angiosperms. Their success results, in part, from two innovative structures: the flower and the fruit.

Detailed explanation-2: -The dominant phase of the life cycle of seed plants is the sporophyte, or spore-producing plant. Like all plants, seed plants produce spores. However, the spores are never released from the body of the sporophyte.

Detailed explanation-3: -In the two great groups of seed plants, gymnosperms and angiosperms, the sporophyte is the dominant phase in the life cycle, as it is also in the vascular cryptogams; the gametophytes are microscopic parasites on the sporophytes.

Detailed explanation-4: -In seed plants, the evolutionary trend led to a dominant sporophyte generation, and at the same time, a systematic reduction in the size of the gametophyte: from a conspicuous structure to a microscopic cluster of cells enclosed in the tissues of the sporophyte.