Invertebrates

Arthropods

Arthropods

arthropod - Is an animal that has a jointed exoskeleton

Crustaceans - has to pairs of antenna like crabs

arachnids - has eight legs and no antennae

Insects - animals with six legs are the largest group of Arthropods.

Characteristics

Jointed exoskeleton

Spiny skinned

Hard skeleton

Moves fast

Large claws

Sheds





Adaptations hard skeleton to be used for protect itself from preditors


Name two characteristics arthropods share. - jointed exoskeleton and hard skeleton



Helpful and Harmful Arthropods


How do arthropods help people? The Insects polonate the flowers to make them better .



Mollusks

Mollusks

Mollusk - Is an animal with a soft body and no bones .

Example: snails


Characteristics

Small

Tenicals

Smart

Radula

Jet like motion




Adaptations - jet like motion

Squirts ink .

Can fit in small places

Smart




Name two characteristics of snails? The snail has a radula that acts like a drill . The other one is they have two tentacles


Echinoderms

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