Bio- Animal diversity- Classifying by Phyla

What is an animal? relates to being multicellular

Multicellular eukaryote with no cell walls

What is an animal? based on metabolic classification

Heterotrophs (chemoheterotrophs)

What is an animal? movement

Capacity to move at some point in life cycle

What is an animal? Development 

Development of animals after zygote phase (able to form blastula)

What is an animal? internal components

Animals make and bind to an extracellular matrix (made of proteins and other things) ex. connective tissue

Porifera

Sponges

Cnidaria

Marine organisms like Jellyfish or coral

Platyhelminthes

Flatworms 

Mollusca

Mollusk (soft body with shell)

Annelida

Segmented worms

Nematoda

Roundworms

Arthopoda

Insects, spiders, mites

Echinodermata

Starfish, sea urchins, usually has 5-points to them

Chordata

Lanclets, sharks, fish, lizards, humans, mammals

Where did animals originate?

From aquatic protist around 570 mya