24. Plants are multicellular and eukaryotic, meaning their cells have a nucleus and membrane-bound organelles. Plants perform photosynthesis, the process by which plants capture the energy of sunlight and use carbon dioxide from the air to make their own food.
25. Difference Between Vascular and Nonvascular Plants. ... The plants that consist of separate tubular tissues like Xylem and Phloem to transport food, minerals, and water are called the vascular plants, and those that do not show this kind of differentiation of the tissue are called the nonvascular plants
26.Characteristics of Nonvascular Plants. Most bryophytes are small. They not only lack vascular tissues; they also lack true leaves, seeds, and flowers. Instead of roots, they have hair-like rhizoids to anchor them to the ground and to absorb water and minerals
27. Seedless vascular plants include ferns, whisk ferns, club mosses, and horsetails. The plants do not produce seeds so, like bryophytes, they are dispersed (spread) by windblown spores. They are vascular plants and therefore have true roots, stems, and leaves. The sperm are flagellated and require water for reproduction.
28. Gymnosperms are a group of plants with the following unique characteristics: They do not have an outer covering or shell around their seeds. They do not produce flowers.
29. Their ability to flower sets them apart from non-flowering plants, also known as gymnosperms, allowing them a successful means of reproduction. If you look closely into the flowers, you can see the trademark characteristics of angiosperms, including stamens, carpels, and tiny pollen grains.