2. Taxes are simple, oriented movements toward or away from a stimulus. Taxes are often used to find food, mates, or shelter. For example, moths are attracted to light, and earthworms move away from bright light.
3. Kineses are non-oriented movements that are caused by a change in the environment. Kineses are often used to avoid predators, find food, or maintain a constant body temperature. For example, cockroaches move faster when they are exposed to bright light, and some desert lizards bask in the sun to warm their bodies.
4. Imprinting is a form of learning that occurs during a critical period early in an organism's life. Imprinting is often used to establish a bond between a parent and its offspring, or between a young animal and its social group. For example, ducklings will imprint on the first moving object they see after they hatch, which is usually their mother.
5. Habituation is a simple form of learning in which an organism stops responding to a stimulus that is no longer significant. Habituation is often used to ignore harmless stimuli and focus on more important ones. For example, a dog may bark at a stranger the first time it sees him, but it may stop barking if the stranger remains calm and does not move.