1. Phylum Arthropoda Mr. Hooper April 2016
The Arthropods
Phylum Arthropoda
Mr. Hooper
April 2016

2. Phylum Arthropoda
Phylum Arthropoda is the largest phylum of animals – there are more
than one million identified arthropod species.

3. Cactus Longhorn Beetle
Phylum Arthropoda
Arthropod is from the Greek
words “Arthros” meaning joint
and “podos” meaning leg or
foot.
The arthropods are divided into
five major groups:
Class Crustacea
Class Arachnida
Class Chilopoda
Class Diplopoda
Class Insecta
Cactus Longhorn Beetle
(Moneilema gigas)

4. Class Crustacea crayfish crabs shrimps sow bugs
Fiddler crab; crayfish; peppermint shrimp; sow bug
sow bugs

5. ticks
scorpions
spiders
Class Arachnida
harvestmen

6. mites
whip spiders
pseudoscorpions
solpugids
Class Arachnida

7. Class Chilopoda
Scutigera coleoptrata

8. Class Diplopoda

9. Class Insecta

10.
Arthropods are invertebrates that have an external skeleton or exoskeleton, a segmented body, and jointed attachments called appendages.

11. Characteristics of Arthropods
Arthropods have bilateral symmetry.
Arthropods have an open circulatory
system.
Arthropods have a complete digestive
system (i.e. a digestive system with
two openings).
Most arthropods reproduce sexually.

12. Characteristics of Arthropods
The open circulatory system of spiders: it is an open network which means its arteries carry haemolymph, the arthropod equivalent of mammalian blood, out into the tissue spaces where it diffuses past individual cells before being collected back into the heart. There are few, if any, veins in this system and definitely no capillaries.

13. Characteristics of Arthropods: Exoskeleton
The exoskeleton is a
waterproof outer covering.
The exoskeleton provides
protection and prevents
water loss.
The muscles of arthropods
attach to the exoskeleton.
As an arthropod grows larger, the hard exoskeleton cannot expand.
Therefore, arthropods periodically shed their outgrown exoskeleton - a
process called molting.

14. Characteristics of Arthropods: Appendages
Head louse - Pediculus humanus (SEM)
The appendages of arthropods are jointed and highly specialized for moving, obtaining food, reproducing, and sensing the environment.
Most arthropods have antennae that are appendages attached to the head containing sense organs.

15. Works Cited
Ambylopygi (whip spider).
American Dog Tick.
Black Galapagos Centipede.
Black widow.
Brown marmoted stink bug.
Centipede.
Coiled Millipede.
Crayfish.
Dust mites.
Fiddler crab.
Harvestman.
Jumping spider with blue.
Millipede.
Peppermint shrimp.
Pill bug.
Plague soldier beetle.
Pseudoscorpion.
Sally lightfoot crab.
Scorpion.
Scutigera.
Solpugid (camel spider).
Spiny Leaf Insect.