The animal kingdom probably originated from ____ _____
colonial protista
Animals have complex ____ ____ that form tissues that carry out specialized tasks
cell types
The majority of animals are _____ and carry out _____ reproduction
diploid ; sexual
Most animals develop from layers of cells - ____ ____
germ layers
_______ animals exhibit zero symmetry in body plan sponges
asymmetrical
_____ symmetry refers to symmetry along a longitudinal direction
radial
______ symmetry refers to right left symmetry, right is a mirror image of left - humans and the vast majority of animals
bilateral
there is a correlation between symmetry and number of developmental ____ ____
germ layers
animal body plans exhibits one of ____ types of symmetry
3
____ ____ organisms develop from a:
- diploblast embryo
- ectoderm and endoderm layers
radially symmetric
______ ______ organism develop from a:
- triploblast embryo
- ectoderm, mesoderm, and endoderm
bilaterally symmetric
triploblastic embryos can form ____ ____
body cavities
no cavity = ______
Acoelomates
cavity from mesoderm and endoderm = ______
psuedocoelomates
cavity from mesoderm only = _____
eucoelomates
type of embryonic development: The blastopore becomes the mouth
Protostomes
Type of embryonic development: The blastopore becomes the anus
Deuterostomes
the simplest living animals
sponges
