cyclostomata Flashcards
1
Q
class of vertebra that’s ectoparasitic
A
they are cyclostomata
2
Q
how many gill slits they posses
A
around 6 to 15 PAIRS
3
Q
agnatha or gnathostomata
A
agnatha [does not posses jaw]
4
Q
explain their spawning process
A
they are marine but move to fresh water for spawning and once done the parent dies in few days while the larva after metamorphosis moves back to marine
5
Q
cranium and vertebral column is made up of
A
it is cartilaginous
6
Q
circulATION
A
closed
7
Q
examples are
A
petromyzon [lamprey], myxine [hagfish]
