Biologists use the term producer to describe green plants that synthesize food through the process photosynthesis. Producers form the bottom rung of the food chain, and they serve as food for animals, which bear the name consumers. Without producers, the food chain would collapse because all other living organisms depend on them for food.Know More
Plants engage in photosynthesis by combining carbon dioxide and water with sunlight. This process releases a small amount of water, some oxygen as a waste product and sugars. These sugars contain the energy that originated in the sun; when the plant needs energy, it breaks down these sugars to release the energy.
Photosynthesis largely takes place in small organelles, called chloroplasts. Chloroplasts are most common in the cells that make up the plant’s leaves, but a few can also be found in the stems and other green structures. Scientists believe that chloroplasts may have initially evolved as free-living bacteria before they became symbiotic components of some plant cells.
Despite the fact that green plants make their own food, some plants, such as the infamous Venus fly trap, consume animals as well. Carnivorous adaptations are common strategies of plants that live in nutrient-poor environments, such as peat swamps. Despite the ingestion of food, these plants still produce sugars through photosynthesis.Learn more about Biology
In biology and all other forms of science and mathematics, a controlled variable is one that is completely controlled throughout an experiment. Controlled variables stay constant throughout experiments and are carefully controlled and observed.Full Answer >
A dependent variable in biology is an element that is being tested. It relies on the independent variable, or that aspect of the experiment that the scientist has control over and changes to observe the results on the dependent variable.Full Answer >
Biology, or the study of life, is important because it helps people to understand ourselves and the world people live in. Biology has several branches that specialize in certain areas of life. Some of these include genetics, immunology, physiology and ecology.Full Answer >
Some archaebacteria are photosynthetic, meaning they make their own food; however, rather than use the pigment chlorophyll like green plants and algae, they employ a light-sensitive purple protein called bacteriorhodopsin. Other archaea live in places where no sunlight penetrates, such as deep-sea thermal vents. These bacteria rely on a process called chemosynthesis to make ATP.Full Answer >