Answer: The parts of the sporophyte are the same in all the Bryophytes. The sporophytes of true mosses, liverworts, and hornworts all contain a foot, seta, and capsule is FALSE.
21. False
Step-by-step explanation:
While bryophytes, which include mosses, liverworts, and hornworts, share certain similarities in their sporophyte structures, they also have distinct differences. The sporophytes of true mosses, liverworts, and hornworts do not have the same exact parts.
In true mosses (phylum Bryophyta), the sporophyte consists of a foot, seta, and capsule. The foot is the base of the sporophyte that remains attached to the gametophyte, the dominant generation of bryophytes. The seta is a stalk-like structure that elevates the capsule, and the capsule is the structure containing the spores.
In liverworts (phylum Marchantiophyta), the sporophyte structure is different. Liverwort sporophytes consist of a foot, seta, and a specialized structure called the sporangium. The sporangium is responsible for producing spores.
In hornworts (phylum Anthocerotophyta), the sporophytes are distinct from both mosses and liverworts. Hornwort sporophytes have a foot, elongated seta, and a horn-shaped structure known as the sporophyte or sporogonium. The sporophyte contains the spores.
Therefore, the parts of the sporophyte are not the same in all bryophytes. The specific structures and arrangements can vary among mosses, liverworts, and hornworts.
21. Explanation- Mosses, liverworts, and hornworts are not limited to tropical rainforests, and they are not necessarily rare. While these groups of plants can be found in tropical rainforests, they also occur in various other habitats across the world, including temperate forests, tundra regions, wetlands, deserts, and even urban environments.
Mosses, liverworts, and hornworts are collectively known as bryophytes and are found in diverse ecosystems worldwide. They are well-adapted to different environmental conditions and can thrive in moist environments, though they can also survive in more arid habitats by becoming desiccated and resuming growth when moisture is available.
It's important to note that while some species of mosses, liverworts, and hornworts may be rare or have specific habitat requirements, there are also many common and widespread species within these plant groups. They play important ecological roles in various ecosystems, contributing to soil formation, moisture retention, and providing habitats for other organisms.