The Animal Kingdom

5 kingdoms

1. Monerans Bacteria, prokaryotic

2. Protista single celled, eukaryotic

3. Plantae

4. Fungi

5. Animalia

Characteristics of Animals

Eukaryotic Multicellular Reproduce Specialized Cells Heterotrophic (must obtain food) Must Digest Food Most animals move and have a fixed size

in the adult form

ANIMAL PHYLA

AB C

1 2

3 4

5 6

7 8

1011

9

Classification of Animals

Symmetry:

AssymetricalRadialBilateral

Body Cavity:

AcoelomatePseudoceolomateCoelomate

Embryonic Openings

ProtostomeDeuterostome

Symmetry

Body Symmetry of Animals

Asymmetrycannot be divided into mirror images

Ex- sponges• Very simple

organisms• Believed this type of organism

evolved 1st

Radial Symmetry:can be cut in half along many planes that allow for nearly identical halves

Ex- Hydra: adaptation to be able to see prey coming at it from any direction

Bilateral Symmetry:a single plane divides body into two

mirror images

More complex organisms exhibit this kind of

symmetry

Get ready to CLICK!!!

What type of symmetry is shown here?

5% 10%

86%

Bilateral Radial Asymmetry

1. Bilateral

2. Radial

3. Asymmetry

What type of symmetry is shown here?

81%

19% 0%

Bilateral Radial Asymmetry

1. Bilateral

2. Radial

3. Asymmetry

What type of symmetry is shown here?

0% 15%

85%

Bilateral Radial Asymmetry

1. Bilateral

2. Radial

3. Asymmetry

What type of symmetry is shown here?

20%

80%

0%

Bilateral Radial Asymmetry

1. Bilateral

2. Radial

3. Asymmetry

What type of symmetry is shown here?

91%

9% 0%

Bilateral Radial Asymmetry

1. Bilateral

2. Radial

3. Asymmetry

What type of symmetry is shown here?

0%

0%

100%

Bilateral Radial Asymmetry

1. Bilateral

2. Radial

3. Asymmetry

What type of symmetry is shown here?

91%

0%

9%

Bilateral Radial Asymmetry

1. Bilateral

2. Radial

3. Asymmetry

What type of symmetry is shown here?

5%

91%

5%

Bilateral Radial Asymmetry

1. Bilateral

2. Radial

3. Asymmetry

What type of symmetry is shown here?

100%

0%

0%

Bilateral Radial Asymmetry

1. Bilateral

2. Radial

3. Asymmetry

What type of symmetry is shown here?

0%

0%

100%

Bilateral Radial Asymmetry

1. Bilateral

2. Radial

3. Asymmetry

How else do we classify Animals?

DNA Coelom or not Physical Characteristics

Proto/Deuterostomes Deuterostomes

Radial Cleavage Blastopore becomes the _______ Indeterminate Cleavage: which means early on in

development the fates of the cells are undetermined

Protostomes- Spiral Cleavage Blastopore becomes the _______ Determinate Cleavage- which means that each cell of

the embryo has a fixed or determined fate.

Body cavity

AcoelomatesFLATWORMS (Phylum _________)May be the 1st organisms to evolve organs from mesodermSolid, compact bodyOrgans imbedded in the solid tissue of the body. first to have the three cell layers

Ecto/endo/mesodermHave a digestive tract (one way gut)

PseudocoelomatesRoundworms (Phylum _________)

Have a body cavityIt’s fluid-filled and partly lined with mesodermEnables animal to move more quickly

Muscles attach to the mesoderm and brace against the pseudocoelom

CoelomatesSegmented worms (Phylum ______)

Coelom provides space for development of organs/ organ systemsThis allows for membranes like the parietals and viscerals Have a TRUE body cavityCOELOM= fluid-filled space COMPLETELY surrounded by mesoderm.Coelom cushions and protects internal organs and provides room for them to grow and move independently