BOTANY

Detailed explanation-1: -The angiosperms are the most recently derived plant group, originating some 160 million years ago and becoming widespread around 120 million years ago. Angiosperm means “enclosed seed, ” referring to the ovary and fruit that contains angiosperm seeds.

Detailed explanation-2: -Charophytes are the group of green algae whose ancestral lineage gave rise to land plants in what resulted in a profoundly transformative event in the natural history of the planet.

Detailed explanation-3: -Charophyta are autotrophic, creating starch from photosynthesis. Charophyta can reproduce asexually or sexually; sexual reproduction is the primary method. Asexual reproduction occurs by fragmentation. Sexual reproduction is oogamous, with zygotic meiosis; plants may be monoecoious or dioecious.

Detailed explanation-4: -Charophytes are a group of green algae within the order Charales. These algae are macroscopically similar to aquatic vascular plants and are typically grouped with aquatic weeds because their excessive growth in some locations can be considered a nuisance.