Phylum arthropoda

Question 1

what are the 3 sub phylums of arthropoda?

Answer 1

1) crustacea
2) myriapoda
3) chelicerata

Question 2

what are the 4 classes of crustaceans?

Answer 2

1) maxillopoda
2) Malacostraca
3) ostracoda
4) Branchiopoda

Question 3

what are the 2 classes of myriapoda?

Answer 3

1) diplopoda

2) Chilopoda

Question 4

what are the 3 classes of chelicerata?

Answer 4

1) merostomata
2) arachnida
3) pycnogonida

Question 5

what are 2 defining features of the sub phylum crustacea?

Answer 5

• two pairs of antennae

- biramous (two-branched) appendages

Question 6

what does the maxillopoda include?

Answer 6

barnacles

copepods

Question 7

what orders are within Malacostraca?

Answer 7

1) Isopoda
2) Decapoda
3) stomatopoda
4) amphipoda
5) anaspidacea

Question 8

describe ispods?

Answer 8

dorsoventrally flattened e.g. woodlouse

Question 9

what are decapods?

Answer 9

crabs, lobsters, crayfish

Question 10

describe stomatopods?

Answer 10

mantis shrimps -large with huge hinged appendages

Question 11

what is in the class ostracoda?

Answer 11

mussel or seed shrimps

Question 12

what is in the class Branchiopoda?

Answer 12

brine shrimp and water flea

Question 13

describe the class diplopoda

Answer 13

millipedes- rounded

Question 14

describe the class chilopoda

Answer 14

centipedes- dorsoventrally flattened

Question 15

what are 4 defining features of the sub phylum chelicerata?

Answer 15

1) two tagmata (cephlathorax + abdomen)
2) no antennae
3) 8 legs + pair of chelicerae and pedipalps
4) appendages on cephlathorax

Question 16

what are in the class merostomata?

Answer 16

horse shoe crabs

Question 17

what are in the class arachnida?

Answer 17

scorpions, spiders, ticks, mites

Question 18

what are in the class pycnogonida?

Answer 18

sea spiders