32.4 animal phylogeny from molecular data Flashcards
1
Q
common ancestor
A
Meazoa
2
Q
sponges are basal animals
A
and they could fall into many phyla
3
Q
eumetazoa is a clade of a animals with true tissues
A
basal ones are diploblastic and radial symmetry
4
Q
most animal ply belong to clade:
A
bilateria
5
Q
chordates and other ply belong to the clade:
A
deuterostomia
6
Q
the ecdysozoans and the lophotrochozoans
A
whatever is in bilateria that isn’t a deuterostome
7
Q
the ecdysozoans
A
exoskeletons
8
Q
ecdysis
A
shedding the exoskeletons
9
Q
the lophotrochozoans
A
-could develop a lophophore -or go through the stage called trochophore larva
10
Q
lophophore
A
a crown of ciliated tentacles for feeding
11
Q
trochophore larva stage
A
a
