Biology-Animals

Front 1

Characteristics of Animals

Back 1

eukaryotes, multicellular, heterotrophs, internal digestion, no cell walls, store excess carbohydrates as glycogen, must move at some point during lifetime, classified by tissue layers

Front 2

Three tissue layers

Back 2

Ectoderm, mesoderm, endoderm

Front 3

1.ectoderm
2.mesoderm
3.endoderm

Back 3

1.outer, gives rise to skin/integument
2.middle, gives rise to muscles and organs
3. inside, linings of organs/guts/respiratory tract

Front 4

cephalization

Back 4

development of a head

Front 5

Two types of symmetry

Back 5

Radial, bilateral

Front 6

1. Radial symmetry
2. Bilateral symmetry

Back 6

1. cut any way and get two symmetrical halves
2. can only cut one way to get two halves

Front 7

coelom

Back 7

body cavity surrounded by mesoderm (to develop organs)
(acoelomate, pseudocoelomate, coelomate)

Front 8

Protostomes

Back 8

blastopore becomes mouth, have spiral cleavage, determinate cells, schizocoelus(mesoderm splits and rips open to form cavity)
(annelida, mollusca, arthropoda)

Front 9

Deuterostomes

Back 9

blastopore becomes anus, radial cleavage, indeterminate cells, outpocketings form from inside mesoderm
(echinodermata, chordata)