Transcript insects (power point - Mrs. Snyder`s science page

Bugging
Out!
Science, Mrs. Snyder
Scientists classify animals
• They are grouped to make it easier for
scientists to study them.
• There are two main groups of animals:
– Those with a backbone inside their bodies.
• Vertebrates
– Those with a backbone outside their bodies.
• Invertebrates
• Which group do you belong to?
Shared Characteristics
• Organisms in the same group have similar
characteristics
• We are going to focus on insects.
• All insects have a few similar characteristics.
• They have an exoskeleton. Here is a picture of a
cicada’s exoskeleton.
• They have three main parts to their bodies: a head, a
thorax, and an abdomen.
• They have one pair of antennae on top of their
heads.They have two pair of wings.
• They have three pair of legs.
Two pair of wings
• Insects, like this
dragonfly, have two
pair of wings.
• Their wings are
symmetrical.
Three pair of legs
• To be an classified
as an insect, an
organism must have
THREE pair of legs.
• These legs are
symmetrical.
Other characteristics
• Usually, they are small
in size.
• Insects, like all animals,
move.
– They jump, fly, or walk.
• They cannot produce
their own food by
means of
photosynthesis, but are
consumers.
• They also need water
and air to live.
Quiz!
1. Is this an insect?
Explain why or why
not.
Quiz, continued
2. Is this an insect?
Why or why not?
Only one more after this one!
3. What about this
example, or
specimen?
The last question!
4. What about this
specimen? Explain
why or why not.
Use the
characteristics to
explain your
answer.
References
http://www.englishrules.com/photography/nature/praying
-mantis_latest.jpg
http://visual.merriam-webster.com/
http://www.reachoutmichigan.org/funexperiments/agesu
bject/lessons/insect.html
http://www.pbase.com/cbpersel/image/48994943
http://cache.eb.com/eb/image?id=94702&rendTypeId=3
4
http://student.britannica.com/elementary/art-88818/Thebody-of-an-insect-has-three-main-segments-the
More references
• http://www.malpaisbeach.com/costaricai
nsects.html
• http://farm2.static.flickr.com/1109/57716
1789_5b2860c74d.jpg?v=0
• http://www.nilesbio.com/images/categori
es/C313.jpg