Phylum Arthropoda

Question 1

Common name

Answer 1

Arthropods
Jointed feet

Question 2

diversity

Answer 2

Composes 85% of all animal diversity

Question 3

Symmetry

Answer 3

Bilateral
Triploblastic

Question 4

Organ system

Answer 4

Complete digestive system
Open circulatory system

Question 5

Respiratory system

Answer 5

Gills
Book lungs
Spiracles and trachea

Question 6

Exoskeleton

Answer 6

Chiton and protein
Ecdysis

Question 7

Segmentation

Answer 7

Tagmata
1) head, thorax, abdomen
2) cephalothorax, abdomen
3) head- trunk

Question 8

Ecological importance

Answer 8

Pollinate crops
Voracious herbivores
Disease vectors
Valuable food

Question 9

Subphylum cheliecerata

Answer 9

Marine, freshwater, and Terrestrial
Dioecious
Structure: cephalothorax and abdomen
Chelicerae: 1st pair venomous fangs
Pedipalps: 2nd pair appendages
Ex. Spider, scorpion, mite, tick

Question 10

Subphylum myriapoda

Answer 10

Terrestrial
Venom claws
Predators
Centipedes and millipedes

Question 11

Subphyla crustacea

Answer 11

Crustaceans
Freshwater and marine
Most dioecious
Structure: 2 antenna pairs, mandibles, biramous appendages, cephalothorax-abdomen, carapace

Question 12

Subphylum hexapoda

Answer 12

Freshwater, terrestrial, few marine
Metamorphosis- 1st flight
Structures: 3 pairs of legs
2 pairs of wings
Compound eye

Question 13

Trilobita

Answer 13

Trilobites
Extinct subphyla
Compose many arthropod fossils