Animal Characteristics
An animal with a backbone? One without a backbone?
Vertebrate/Invertebrate
What kind of symmetry do worms have?
Bilateral symmetry
What is the special organ that mollusks have called?
What structure protects, supports, and keeps arthropods hydrated?
Exoskeleton
How is an animal's body organized?
Tissues
Organs
Organ Systems
What do cnidarians have that help them catch their prey?
Tentacles and stinging cells
What are the three types of worms?
Flatworms
Roundworms
Segmented Worms
Echinoderms have what kind of support structure?
Endoskeleton
What dramatic change do arthropods go through?
What are the three types of symmetry that an animal can have?
Bilateral
Radial
No
How do sponges get food and oxygen?
Filtering water through their bodies
What is the easiest way to distinguish between the three groups of worms?
The shape of their body
Which group of Mollusks have the largest brains of any invertebrates?
Cephalopods
What are the four groups of arthropods?
Crustaceans
Arachnids
Centipedes/Millipedes
Insects
Describe what an animal is.
A multicellular, eukaryotic, heterotrophic organism that can move
Describe how sponges can reproduce
Asexually by budding
Sexually by releasing sperm and eggs into the water
What two adaptations did worms first develop in animals?
Brains (nervous system)
Closed circulatory system
How can echinoderms move?
Their water vascular system and tube feet
What three characteristics do scientists use to separate the four groups of arthropods?
Number of body sections
Number of pairs of legs
Number of Antennae
Obtain food and oxygen
Keep internal conditions stable
Move
Reproduce
What major adaptation separates sponges from cnidarians?
Movement
Describe how worms can reproduce
Sexually by mating with our worms
What are the four groups of Echinoderms and the three groups of Mollusks?
Sea Stars
Brittle Stars
Sea Urchins
Sea Cucumbers
Gastropods
Bivalves
Cephalopods
What structure do insects have that other arthropods do not?
Wings