Transcript Is It An Insect?

Is It An Insect?
Yes or No?
Emily Heckman
What is an Insect?
Is there truly a difference among
bugs, arachnids, crustaceans, and
insects?
What classifies as an insect? Do
you know?
Class Discussion
What criteria is needed to classify
an insect?
What do you think?
Is this an insect?
Three-Part Body
 Insects have a three-part body which
consists of a head, thorax, and
abdomen.
 This means that the ant is an insect.
Is it an Insect?
Arthropods
 Insects are arthropods, meaning they
have a chitinous exoskeleton.
 Even with the exoskeleton, the crab is
not classified as an insect. The crab is a
crustacean.
Is this an Insect?
Six Legs
 All insects have three pairs of jointed
legs.
 The spider has eight legs. This means it
is not an insect. A spider is an arachnid.
Is it an Insect?
Two Antennae
 Insects have two antennae which they
use for sensing.
 Yes, a bee is an insect. The bee has a
three-part body, six legs, and
antennae.
What about this? Insect or no?
It’s a bug! Right?
 The “Lady Bug” or Coccinellidae is
related to a beetle.
 They have antenna, six legs, and a
hard shell that covers their wings.
 Yes, a Lady bug is an insect!
Is it an Insect?
Compound Eyes
 Insects have compound eyes.
 Compound eyes help them to view
very large angles.
 Yes, the fly is an insect.
Let’s Review!
Now you know insects have:
Photo References
 http://img.dailymail.co.uk/i/pix/2007/08_01/antDM0208_4
68x337.jpg Ant
 http://tokyo5.files.wordpress.com/2009/11/redback.jpg
Spider
 http://www.insectidentification.org/imgs/insects/honey-
bee.jpg Honey Bee
 http://www.evangelchristianschool.org/news/wp-
content/uploads/2008/12/crab1.jpg Crab
Photo References
 http://www.vectair.co.uk/UserFiles/images/3512101208ins
ect.jpg Fly
 http://www.mediagiantbomb.com/uploads/0/5768/553534
-ladybug_large.jpg LadyBug

http://www.nicksspiders.com/insects/anatomy.jpg
Anatomy
 http://en.wikipedia.org/wiki/Insect Information