Living things differ from non living things because they are made of cells and contain DNA, transform and metabolize energy, and reproduce. They also grow and develop, respond and react to internal and external influences, and can evolve and adapt.
Anything in this world is either living or non-living. All living things, from simple unicellular organisms like amoeba to multicellular organisms like humans, are composed of one or more cells and contain a genetic code in the form of DNA. Since life forms require energy to sustain life they have metabolic processes to transform, store or release energy and synthesize nutrients. For example, humans inhale oxygen during respiration to release energy from foods consumed. Plants absorb light energy to manufacture nutrients during photosynthesis.
Living things grow and mature during their life circle. Their cells increase in number or grow in size, and differentiate into specialized groups. Living things have variety of methods to reproduce. Eventually all living things die and are transformed into other types of energy. They also respond to different internal and external stimuli.
Movement and excretion are two similarities between living things and some non-living things. For example, a car can move, break down fuel and release carbon dioxide.Learn More
Algae are a type of plant that usually grows on the surface of still water, such as a small pond, when there is an ecological imbalance. In some cases, algae is able to grow at a rapid rate, potentially spreading across the entire surface.Full Answer >
Centrosomes are the site of microtubule organization in animal cells. They are regulators of the cell cycle and play an essential role in the process of mitosis.Full Answer >
According to the National Oceanic and Atmospheric Administration, coral reefs are formed when coral larvae attach themselves to rocks or other hard surfaces found under water along the edges of islands and along coasts. Additionally, plants may also accumulate within the reef. The process is slow and aided by limestone deposits, which settle on the plant and animal life.Full Answer >
According to the Merck Manual Home Health Handbook, the primary function of erythrocytes, more commonly known as red blood cells, is to transport oxygen from the lungs to the body's many tissues. Red blood cells are also responsible for retrieving carbon dioxide from tissues and transporting it back to the lungs where it can be exhaled.Full Answer >