Water is a nonliving natural thing. Though water can move and change in appearance and shape, it requires external forces to do so, such as forces of nature or human intervention. It also does not produce waste and it ca... More »

Some of the characteristics of living things are the ability to reproduce, active response and adaptation to the surrounding environment, cell composition and growth and development. Life forms have to exhibit all the ch... More »

A non-living organism is defined as an organism that lacks, or has stopped showing, signs of life. Non-living organisms are inanimate and have stopped displaying capabilities for growth, reproduction, respiration, metabo... More »

Specialist species are animals that are adapted to a particular thing, such as a specific food or habitat. An example of a specialist species is a tiger salamander, which requires a consistent wetland habitat to breed an... More »

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A homologous trait shared between two species is actually the same thing as synapomorphy, but synapomorphy is the term favored in modern biology. Both terms refer to similarities between different species that derive fro... More »

Some people’s sweat contains more salt than others, particularly people who drink more water and eat a lower-salt diet, states RunnersWorld. Individuals can replace the salt lost through sweating by adding more salt to t... More »

Plant cell vacuoles serve the same vital storage functions for nutrients, water and wastes as those in animal cells but are much larger because they also provide structural stiffness in combination with the plant's cell ... More »