AmyMath
← Biology – Grade 5
CLASS 5 · LEARNING KNOWLEDGE

Senses and orientation – basic principles

How it works

Humans and many animals possess various sense organs with which they perceive stimuli from their environment. The most important senses in the introductory lessons are seeing, hearing, smelling, tasting, and touching. These senses help with orientation in space, finding food, and protection from danger. Each sense organ is specialized for certain stimuli. In humans and many animals, sensory impressions are processed in the brain or nervous system, evaluated, and turned into appropriate reactions. Some animals have special senses, for example echolocation in bats.

Note
Sense organs receive certain stimuli and pass information on to the brain or nervous system. This gives rise to perceptions and appropriate reactions.

An example

Which sense organ is mainly responsible for hearing?

The ear is the sense organ for hearing because it receives sound waves and passes the information on for processing.

Try it yourself now

50 Exercises

To the learning unit →

Own explanation and own practice exercises by AmyMath. Subject reference framework: Biology. The topic assignment may vary by federal state.