Arthropoda & echinodermata notes
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Arthropoda The arthropods
description
Transcript of Arthropoda & echinodermata notes
ArthropodaThe arthropods
Most successful animals on Earth…Over 75% of all animals are arthropods!
Have bilateral symmetry with 3 tissue layers and organs/systems
They have a true coelom type of body cavity with a mouth and anus
They eat everything!
They reproduce sexually
These organisms live everywhere!
Diverse and most successful group of invertebrates
The body is divided into 2 or 3 sections
They have compound eyes!!!
They undergo metamorphosis
Has a nervous system with brain and nerve cords
Has an open-circulatory system with heart and arteries but no veins
Named for their jointed appendages
Hard exoskeleton for protection; most must molt to grow
