week 11 Flashcards
1
Q
some general characteristics with the phylum Chordata
A
bilateral symmetry with a coelom and cephalization , has a NOTOCHORD and nervechord
2
Q
what is the Notochord
A
like a back bone
3
Q
What is a dorsal nerve cord
A
like a brain
4
Q
what are the thyroid ad endostyle gland
A
Endo is the mucus secreting tissue
Thyroid the hormone producing gland
5
Q
subphylum cephalochordata
A
lancelets -hid in sand and shoot out
very simple nervous system and complex musculature and circulatory system
6
Q
Subphylum Urochordata
A
tunicate- vase like struture
sessile marine aduluts which conatin a endostyle and pharyngeal slits
life cycle is a free swimming larval attaches and undergoes 2 phases of metaphorphosis which transforms it into the sessile adult
7
Q
A
