Presentation on theme: "Organisms and Their Environments"— Presentation transcript:
1 Organisms and Their Environments Sensory OrgansLife Science
2 What are senses?Tell animals what they need to know about their environmentAll environmental signals involve a receptor organ.
3 What are sensory organs? Sensory organs are any part of the body receives signals from the environment.They help to keep them out of danger and enable them to find food or shelter.
4 Human SensesSeeingHearingTastingSmellingTouching
5 Seeing Accomplished using eyes The eye is an almost spherical organ. The eye is protected by bones in the skull.The eye is responsible for detecting colors, shapes, sizes, and space by receiving light.
6 SeeingOther animals’ eyes may differ in type, number, and in location on the body.Behaviors Related to this Sense...Locate food or shelterRecognize objects or other organisms
7 Hearing Accomplished using ears The ear is located on either side of the head.The ears receives sound vibrations from the environment.
8 HearingOther animals’ hearing organs may differ in type and in location on the body.Behaviors Related to this Sense...Locate foodSense danger to escape enemiesCommunication
9 Tasting Accomplished using the taste buds located on the tongue. Examples of tastes that humans can detect are...SaltySweetBitterSour
10 TastingOther animals’ taste organs may differ in type and in location on the body.Behaviors Related to this Sense...Judge which foods are okay to eat
11 Smelling Accomplished using the nose Humans react to different smells in the environment in different ways.
12 SmellingOther animals’ smelling organs may differ in type and in location on the body.Behaviors Related to this Sense...Avoid dangerFind foodRecognize other organisms
13 Touching Accomplished using the skin The skin can detect 5 different types of sensations:touchpressurecoldpainheat
14 TouchingOther animals’ touching organs may differ in type and in location on the body.Behaviors Related to this Sense...Identify foodReact to dangerous situationsCare for each other
15 In general, every animal has the senses it needs for its own environment and way of life.
16 Other Animals SensesSome other animals need different information about the world to survive, so they have senses that can be different from humans.echolocation in batsnight (infrared) vision in some snakeselectric senses of rays and sharksmagnetic senses of migratory birds (pigeons), butterflies, and some whales