Kingdom Animalia

Embryonic development

Types of Symmetry

Phylum Porifera“Pore

Bearers”

Symmetry Asymetrical

Reproduction Asexual: budding/fragmentation

Sexual: hermaphrodites

Evolutionary Milestone multicellularity

Circulatory System Diffusion

Unique Characteristic sessile

regeneration

Importance Food chain

Absorbent qualities

Cnidaria“Stinging Creatures”

Symmetry Radial

Reproduction Asexual: budding

Sexual: hermaphrodites

Evolutionary Milestone Tissues (no organs)

Circulatory System Diffusion

Unique Characteristic Stinging cells: cnidocytes

Tentacles

Importance Edible

Protect shorelines

Habitat for others

Coelm: body cavityFluid filled space in multicellular

animals• Coelomate animals: true cavity: with a complete lining

called peritoneum derived from mesoderm

• Pseudocoelomate animals have a pseudocoel: – “false cavity”– tissue derived from mesoderm only partly lines the fluid filled

body cavity of these animals. – All pseudocoelomates are protosomes

• Acoelomate animals, like flatworms, have no body cavity at all. Organs have direct contact with the epithelium.

Platyhelminthes“Flat worms”

Symmetry Bilateral

Reproduction Asexual

Sexual: some are hermaphrodites

Evolutionary Milestone Cephalization: bilateral symmetry

Circulatory System Diffusion

Unique Characteristic acoeloms

Importance Cause diseases

(if wade in water larvae bore thru skin to blood vessels)

Nematoda“Round Worms”

Symmetry Bilateral

Reproduction Sexual

Evolutionary Milestone False Body cavity

Pseudocoelm

Circulatory System Open: fluids circulate within body cavity

Unique Characteristic Tube within a tube

Importance Cause diseases

parasitic

Circulatory System

Mollusca“The Mollusks”

Symmetry Bilateral

Reproduction Sexual

Snails: hermaphrodites

Evolutionary Milestone Coelom: true body cavity

Circulatory System Open: 3 chambered hearts

Closed: octopus and squid

Unique Characteristic •Radula•Mantle

Importance Food chain: edible

pearls

Toothlike scraping device

Annelida“Segmented Worms”

Symmetry Bilateral

Reproduction Hermaphrodites

Evolutionary Milestone Segmentation

Circulatory System Closed

Unique Characteristic Ganglion: primitive brain

Organ systems

Importance Medicinal purposes

Fertilize soil and creates air spaces

Arthropoda“BUGS”

Symmetry Bilateral

ReproductionSexual

asexual

Evolutionary Milestone Jointed appendages

Circulatory System Closed

Unique Characteristic Jointed appendages

Exoskeleton

Importance Food

Causes disease or transmits

Food chain

pollinators

Echinodermata“spiny skinned”

Symmetry Larvae: bilateral

Adults: radial

Reproduction Sex: gonads

Evolutionary Milestone Deuterostome

(Pattern of embryonic dev. Where anus forms @ the blastopore)

Circulatory System Closed

Unique Characteristic Tube feeders

Regenerate “arms”

Importance Food chain