Ak Flashcards
sponges- organisation?
cellular
in which cells are
arranged as Loose
cell Aggregates
sponges
do Division of Labours Among the cell?
Yes in sponges
some
concentrates level of organisation
Tissue level
What ist-level
cells are same function arranged into tissue
organ line by
Plateyhelminthes
organ eyesem
- specialised
function?
Anneli da, Arthropoda molluscans, chordata Echinodermata
dig. system incomplete
in
Platghelminthes- Single opening
opentype of circulation
cells {tissues are
directly bathed
closed type2
series of vessels of Varying diameter
Assymmetry?
sponges-Anyplane
does not divide into z
Radial symmetry
When ANY Plane
passes through Central Ax i S
RS examples
C C E
Bilateral Symmetry
only one plane - Annelida Arthropoda
Diploblastic
ecto-endoderm embryonic layers - coelen terates ctenophores
un diff layer present between ec- endoderm in Diplo
Mesoglea
Triple blastic
platy helminthes to chordata- ecto meso endo
Presence or Absence of cavity b” - , -
Gut , body wall
Whatis Coelom
Body cavity lined by
mesoderm
coelomates?
Anneli da - chordata
mesoderm-Scattered
pouches
Pseudo c-As chel menthes
Body cavity Absent
Acolom-platy
metameriem
earthworm
sponges
Marine , Assymetrical,Primitive
multicalabar,Cellular level
water transport or
canal system in
Sponges - Ostia _ spongocoel - OScutum
Pathway of H 20
Resp, foodgath excretion
chounoaytes lines
Spongocoel and canals
sponges- digestion
Intracellular
in sponges body supported by
Spicules or
Spongin fibres
sexes are not Seperate in sponges
hermaphrodite
