Kingdom Animalia
What characteristics defines an Animal?
What is an animal?
Invertebrates
Vertebrate: Phylum Chordata
Levels of organization
Number of body layers
Symmetry and body parts
Body cavity
Segmentation
Movement
Reprodution
Sessile vs Stationary
Coelom vs no Coelom cavity
Asymmetry, Bi-lateral symmetry and Radial symmetry
Has an ectoderm, mesoderm and endoderm
They are heterotrophs that usally ingest and then digest their food
They are usually mobile, or have the ability to move, in at least one stage of their lives
They are eukaryotic, multi cellular organisms. Their cells do not have cell walls
They reproduce sexually and produce an embryo that undergoes stages of development
Platyhelminthes
Mollusca
Echinodermate
Arthropoda
Fish
Amphibians
Reptiles
Aves
Mammalia
Example
Examples
Examples
Examples
Example
Examples
Examples
Examples
Porifera
Example
Monotremes are egg layer and only found in Australia and New Guinea, this Platypus is one
Placental mammals have a placenta and are very diverse in stucture, this Grizzly Bear is an example of one
Crocodilians (Order Crocodilia) This is a Caiman
Turtles (Order Testudines), this Sea Turtle is an example of one
Salamanders (Order Urdodela), this is a Jefferson Salamander that belongs to the Class Amphibia
Examples
Rays and Sharks are made of cartilage in the Class Chondrichthyes, this Shark is an example of one
The Class of bony fish called Osteichthyes, this Clown fish is an example of one
Differences in structure, tissues and organ systems
This is a Blue Pool Oyster, part of the Class Bivalvia
This is a Blue Ringed Octopus, part of the class Cephalopoda
Lizards and Snakes (Order Squamata) This is an Eastern Garter Snake
Reptiles use internal fertilization
The Class Reptilia have body scales that create a waterproof barrier that prevents dehydration in dry air
Reptile females deposit eggs in places that provide warmth during incubation.
Fish use gills to obtain dissolved oxygen form water
Fish occupy fresh and salt water habitats
Some fish have swim bladders that fill with oxygen to raise and lower the fish
Reptiles appear on fossil records about 300 million years ago
Marsupials have pouches and a short gestation period, this Kangaroo is an example of one
Mammals have Mammary glands that produce milk for their young
Mammals have hair and are endothermic
Mammals have a four chambered heart and highly developed brains
Frogs and toads (Order Anura), this is a Red-eyed Tree Frog that belongs to the Class Amphibia
Amphibians use lungs as well as their moist skin to exchange gas
Most Amphibian species use external fertilization
Amphibians have evolved from bony fish, gradually developing limbs over time
This Chickadee is one animal that belongs to the Aves Class
Birds have high temperature bodies
Birds are very highly modified reptiles
Birds have unique respiratory systems and have scales on their legs,
Birds first appear in fossil records 150 millions years ago
Birds have hollow bones and distinctive calls.
This is a Starfish, part of the Echinoderms Phylum
Echinoderms are marine animals with radial symmetry
Echinoderms are marine animals with spiny exoskeleton and tube feet
Echinoderms are marine animals with a thin layer of skin covers their exoskeleton, they also have an endoskeleton made of calcium carbonate plates.
This is an earthworm
Worms have brain-like concentrations of cells
Worms have simple nervous systems
Worms are acoelomates
Worms have long tube-like segmented body
This is a Tube Sponge
Sponges and Cnidarians have an asymmetrical body plan
Sponges and Cnidarians have only two layers of cells
Sponges and Cnidarians have no tissues
Sponges and Cnidarians are found in both marine and are found in marine and freshwater environments
This is a Fiddler Crab, Part of the Arthropoda Phylum
Arthropods have a hard exoskeleton that can be shed
Arthropods have legs made up of movable sections connected by joints
This is a common Garden Snail, part of the Class Gastropoda
Molluscs are bilaterally symmetry
Molluscs have Mantles surround the internal organs
Molluscs have a well developed muscular foot for motion
Their exoskeletons are resistant to drying out, this allowed them to colonize terrestrial ecosystems hundreds of millions of years ago