Features of Life > Criteria of Life > Page 8
Activities of Life/ Movement
| Movement is another activity of life. Movements may be rapid or very slow; they may be very noticeable or very subtle. Movement may be thought of in terms of mobility of the individual. Animals and many microorganisms move from one location to another by means of some type of locomotor apparatus. |
| In the life cycle of stationary organisms, there may be reproductive structures that are motile. For example, algae and fungi may produce motile asexual spores called zoospores. The zoospores swim through water to new environments where they undergo transformations into a new stationary individual. Sperm of mosses and ferns and other lower vascular plants are motile, swimming to the egg cells for fertilization. |
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