For people, animals and plants, lifespan refers to the length of life, according to the Oxford Dictionaries. For equipment, machines, appliances and other products, lifespan describes the length of time for which the item is functional.
The phrase "expected lifespan" describes the length of time that the average human lives. As health and science evolves, human lifespans get longer, according to Scientific American. The expected lifespan, or useful life of a product, is one of the factors evaluated by potential buyers. A durable product that lasts longer offers more value than a product that is expensive and has a relatively short lifespan.Learn More
Lipids are a wide category of compounds that are known as biomolecules. Lipids include neutral fats, steroids, oils and waxes. They are created by the body naturally to be used in a variety of biological membranes and reactions.Full Answer >
Physical digestion is the physical process of breaking down food into smaller pieces that can easily be accessed by digestive enzymes, without making any chemical changes, whereas chemical digestion refers to the process through which the mammalian body further breaks down food substances into small, soluble chemicals that can be absorbed into the blood. The chewing of food and movement in the stomach contribute to physical digestion while natural catalysts aid chemical digestion.Full Answer >
A multicelled, or multicellular, organism is any living being comprised of more than one cell. Typically, multicellular life differentiates cells into specialized tasks, which in larger organisms can form tissues and organs. This allows multicellular organisms to have cells that are more efficient at a specific function of life.Full Answer >
The hamstring tendon attaches the hamstring muscle to an area just below the knee joint known as the tibia. It assists with hamstring muscle and aids in bending the knee. The hamstring muscle is located at the back of the thigh and stretches from the pelvis to the knee joint.Full Answer >