Animal kingdom Flashcards
From which phylum does organ system level of classification begin
Aschelminthes
Which is the only phylum which has cellular level of organization
Porifera
Name the 10 phyla of the animal kingdom in order
Porifera Cnidaria Ctenophora Platyhelminthes Aschelminthes Annelida Nematoda Arthropoda Molusca Echinodermata Hemichordata Chordata
Give examples of asymmetrical animals
Most Poriferans and snails
Name two poriferans which are radially symmetrical
Sycon and leucosolenia
They undifferentiated jelly like substance in between the two layers of diploblastic animals is
Mesoglea
What are the three layers of body wall in triploblastic animals
Endoderm ectoderm and mesoderm
Define coelom
The space between body wall and got one which is lined by the mesoderm
If larval stage is present development is indirect give examples
Frog
Give the two types of animals on the basis of embryonic development
Protostomiates and deuterostomiates
Give example of deuterostomiates
Echinodermata to chordates
Define notochord
The mesodermally formed supporting rod like structure formed on the dorsal side during embryonic development
What is the coelomate animal give examples
Coelom is lined with mesoderm and filled with coelomic fluid
What is an a acoelomate
Space between body wall and digestive tract is filled with parenchyma tissue eg. poriferans to platyhelminthes
What are the three types of body plans
Loose cells plan
tube within a tube body plan
blind sack body plan
