Animalia Kingdom Flashcards
Animalia Characteristics
Multicellular
All heterotrophic
2 or 3 tissue layers during embryonic development
10 important phyla
motile during some part of life
10 animalia phyla
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Porifera
Cnidaria
Platyhelminthes
Nematoda
Rotifera
Annelida
Mollusca
Arthropoda
Echinodermata
Chordata
Body Symmetry
Bilateral symmetry: left/right
Cephalization- collection of nervous tissue in the head
Radial: circular arrangement around a central axis (oral and aboral side)
asymmetry: no symmetry
Parazoa
Lack tissues
Metazoa (eumetazoa)
have tissues
which phylym is parazoa
Porifera (sponges)
Diploblasts
two layers
Endoderm (inner layer)
Ectoderm (outer layer)
Triploblasts
three layers
Endoderm (inner layer)
Mesoderm (middle layer)
Ectoderm (outer layer)
Do triploblastic animals have bilateral or radial symmetry
Bilateral
What symmetry do diploblastic animals have
Radial
Coelom
body davity located between the meso and endoderm
Acoelomate
No coelom
Coelomate
comelom completely surrounded by mesoderm
Psuedocoelomate
Coelom not completely surrounded by mesoderm
Zygote
fertilized egg cell
morula
ball of cells
blastula
hollow ball of cells
gastrula
invagination (blastopore) to make the gut tract
Protostome
mouth
Deuterostome
anus
Incomplete digestive tract (two way)
single opening for food
no anus
good digested in a gatrovascular cavity
Complete digestive tract (one way)
Mouth and anus
alimentary canal
Parthenogenesis
egg develops into a new indidvidual without fertilization
asexual reproduction
