Plants share four characteristics that are structural and functional. Structurally, plants are separated into shoots and roots and they have protective layers that prevents water loss. Functionally, they synthesize their own food and use alternating reproductive processes in each generation.Know More
The structural similarities of plants are the shoots, or the plant above ground, including the leaves, flowers and stems. The roots lie underground, anchor the plant and take in nutrients and water. Furthermore, cells jackets around the gametes retain moisture so they won't dry out and reproduction is more likely. Also, plant surfaces exposed to air have a waxy layer called the cuticle to prevent drying.
Functionally, most plants do not eat other organisms. They synthesize their food from light, water and carbon dioxide. In addition, plants alternate between haploid and diploid generations. Diploid generations have a set of chromosomes from both parent plants. Haploid is just one set of chromosomes.Learn more about Botany
Plants are eukaryotic, meaning their cells have a nucleus. They form tissues, have multiple cells and create food through photosynthesis, which is the process of turning sunlight into energy.Full Answer >
Plants are necessary because they are a primary food source and provide the oxygen that is vital to animals' and humans' existence. A majority of the calories that people consume comes from plants, and most meat comes from animals that eat plants. Plants are at the bottom of the food chain, and animals could not survive without them. Plants also release the oxygen that humans and animals breathe.Full Answer >
Plants provide food to people and animals, regulate the water cycle, create oxygen and provide a habitat for other species. Without plants, life on Earth would not be sustainable for most species, including humans.Full Answer >
Seedless vascular plants are relatively small plants that depend on flagellated sperm in water for the fertilization of their female gametes in their gametophyte stage, which are then reproduced via wind-blown spores. They are a minority of plant species, including ferns, whisk ferns, club mosses and horsetails. They were the dominant types of plants during the carboniferous period, but were out-competed by the later seeded vascular plants.Full Answer >