| A | B |
|---|
| classification System | Living things are grouped according to their similarities |
| scientific name | The genus and species names |
| invertebrates | Animals without backbones |
| vertebrates | Animals with backbone. |
| Carolus Linnaeus | Invented the Classification system |
| external skeleton | exoskeleton. |
| arthropods | Invertebrates that have external skeletons, jointed appendages and segmented bodies. |
| tracheae | Tubes that connect the spiracles, of an arthropod, to air sacs. |
| chitin | A strong material that makes up the exoskeleton of the arthropods. |
| metamorphosis | 1..egg 2.Larva 3.Pupa 4 Adult. |
| air sacs | Found at the end of the tracheae and act like lungs. |
| molt | The sheding of skin of an arthropod. |
| Incomplete Metamorphosis: | 1.Egg 2.Nymph 3.Adult |
| Antennae | Found on the head of artropods to feel, hear andtaste. |
| spiracles | Openings in the body that allow oxygen to enter. |
| insects | a head b.thorax c.abdomen Three pair of jointed legs. |
| Simple eyes | Allow arthropods to see light and shadow. |
| compound eyes | Help Insects to see in many directions at once. |
| entomologist | A scientists who studies insects. |
| nocturnal | Is defined as only moves aboutat night. |
