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 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 >
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 >
Humans need plants for a number of reasons, with the two most important ones being to provide oxygen and food. Additionally, plants give fuel, fiber, medicine and materials for shelter. They can also be useful in cleaning toxic soils, filtering particles from the air, stabilizing soils and acting as an insecticide.Full Answer >
Plants produce oxygen and carbohydrates from carbon dioxide and water through the process of photosynthesis. Sunlight reacts with chlorophyll in the plant's leaves, and the plant stores that energy in the chemical bonds of carbohydrates. Oxygen is released into the atmosphere as part of the plant's respiration cycle.Full Answer >