Is It An Is It An Insect?Insect?

Yes or No?Yes or No?

Emily HeckmanEmily Heckman

What is an Insect?What is an Insect?

Is there truly a difference Is there truly a difference among bugs, arachnids, among bugs, arachnids, crustaceans, and insects?crustaceans, and insects?

What classifies as an What classifies as an insect? Do you know?insect? Do you know?

Class DiscussionClass Discussion

What criteria is needed to What criteria is needed to classify an insect?classify an insect?

What do you think?What do you think?

Is this an insect?Is this an insect?

Three-Part BodyThree-Part Body

Insects have a three-part Insects have a three-part body which consists of a body which consists of a head, thorax, and abdomen. head, thorax, and abdomen.

This means that the ant This means that the ant isis an an insect.insect.

Is it an Insect?Is it an Insect?

ArthropodsArthropods

Insects are arthropods, meaning Insects are arthropods, meaning they have a chitinous they have a chitinous exoskeleton.exoskeleton.

Even with the exoskeleton, the Even with the exoskeleton, the crab crab is not is not classified as an classified as an insect. The crab is a crustacean.insect. The crab is a crustacean.

Is this an Insect?Is this an Insect?

Six LegsSix Legs

All insects have three pairs of All insects have three pairs of jointed legs. jointed legs.

The spider has eight legs. The spider has eight legs. This means it This means it is not is not an insect. an insect. A spider is an arachnid. A spider is an arachnid.

Is it an Insect?Is it an Insect?

Two AntennaeTwo Antennae

Insects have two antennae Insects have two antennae which they use for sensing.which they use for sensing.

YesYes, a bee , a bee isis an insect. The an insect. The bee has a three-part body, bee has a three-part body, six legs, and antennae.six legs, and antennae.

What about this? What about this? Insect or no?Insect or no?

It’s a bug! Right?It’s a bug! Right?

The “Lady Bug” or The “Lady Bug” or Coccinellidae is related to a Coccinellidae is related to a beetle.beetle.

They have antenna, six legs, They have antenna, six legs, and a hard shell that covers and a hard shell that covers their wings.their wings.

YesYes, a Lady bug , a Lady bug isis an insect! an insect!

Is it an Insect?Is it an Insect?

Compound EyesCompound Eyes

Insects have compound eyes. Insects have compound eyes.

Compound eyes help them to Compound eyes help them to view very large angles.view very large angles.

YesYes, the fly , the fly isis an insect. an insect.

Let’s Review!Let’s Review! Now you know insects Now you know insects

have:have:

Photo ReferencesPhoto References

http://img.dailymail.co.uk/i/pix/2007/08_01/antDM0208_468x337.jpg Ant Ant

http://tokyo5.files.wordpress.com/2009/11/http://tokyo5.files.wordpress.com/2009/11/redback.jpg Spiderredback.jpg Spider

http://www.insectidentification.org/imgs/http://www.insectidentification.org/imgs/insects/honey-bee.jpg Honey Beeinsects/honey-bee.jpg Honey Bee

http://www.evangelchristianschool.org/http://www.evangelchristianschool.org/news/wp-content/uploads/2008/12/crab1.jpg news/wp-content/uploads/2008/12/crab1.jpg Crab Crab

Photo ReferencesPhoto References

http://www.vectair.co.uk/UserFiles/images/http://www.vectair.co.uk/UserFiles/images/3512101208insect.jpg Fly3512101208insect.jpg Fly

http://www.mediagiantbomb.com/uploads/http://www.mediagiantbomb.com/uploads/0/5768/553534-ladybug_large.jpg 0/5768/553534-ladybug_large.jpg LadyBugLadyBug

http://www.nicksspiders.com/insects/http://www.nicksspiders.com/insects/anatomy.jpg anatomy.jpg AnatomyAnatomy

http://en.wikipedia.org/wiki/Insect http://en.wikipedia.org/wiki/Insect InformationInformation