(a) paramecium b) hydra c) anyfish d) frog e) cow f) cockroach g) lizards h)birds
gather information about its
2-circulation of material
3-excreation of waste
5-place of living
The common places of living of Paramecium are fresh waters or waters in which there could be found decaying organic matter. The general surface of Paramecium's body supports the breathing process. Paramecium's food must contain bacteria, small Protozoa, yeasts etc. The excretion of undigested food or waste is made through cytoproct, located near Paramecium's posterior.
The Hydra's breathing process is similar to Paramecium. Hydra possesses a simple digestive system, which transform the food and water into amino acids, monosaccharides, solid waste. Hydra neutralizes the food by discharging nematocysts, that contain poisonous threads, toward the pray. The common places of living of Hydra are lakes, freshwater ponds, etc.
River, forests and swamps are the most common places to live for a frog. The food of a frog usually consists of small invertebrates, ants, insects, spiders, etc. Frogs breathe through their lungs and their skin. The lungs of frogs can be more or less complex, because of the level of body temperature. The solid and liquid waste are evacuated through the frog's cloaca.
Cockroaches breathe through spiracles, located along cockroaches' body side. Malpighian tubes, that are similar to mammalian kidneys, absorb the excretory products, that are dissolved by haemolymph, and discharge them into the hindgut. Cockroaches' food consists of sweets, starches, meet, organic products. Cockroaches live in favorable environents, that allow them to live and reproduce.