Chordata

Question 1

3 subphyla of chordata

Answer 1

Tunicata
Cephalochordata
Vertebrate

Question 2

Describe tunicata

Answer 2

Move freely when young
Attach on sea floor when mature
Have dorsal cord
Halocynthia sp.

Question 3

Describe cephalochordata

Answer 3

Move freely
Have nothocord
Branchiostoma sp.

Question 4

Describe vertebrate

Answer 4

Dorsal nerve covered by vertebrate column from endoskeleton

Question 5

8 class of vertebrates

Answer 5

Agnatha
Placodermi
Chondrichthyes
Osteichthyes
Amphibian
Reptile
Mammal
Aves

Question 6

Describe agnatha

Answer 6

Jawless fish
Parasite
Round mouth
Suck blood
Attack fish
Contoh : Lampreys

Question 7

Describe placodermi

Answer 7

Hanging jaw
Extinct
Dinicthys
Bothriolepis

Question 8

Describe chondrichthyes

Answer 8

Skeleton dari cartilage
Live in sea
Shark
Ray fish
Chimaera fish

Question 9

Describe osteichthyes

Answer 9

Real bone skeleton
Betta splendens -> cupang
Cichiasoma sp. -> louhan fish
Cyprinus carplo -> goldfish

Question 10

Describe amphibia

Answer 10

Transition organism -> water n land
Body surface : slimy
Ex rep
3 h. Chambers
Gills

Question 11

General characteristic of chordata

Answer 11

Nothocord -> embryonic phas

Dorsal nerve cord -> mature