Arthropods
What are the four groups of arthropods?
Insects, arachnids, crustaceans, and myriapods.
What do all molluscs have in common?
They have a soft body.
Name an example of an annelid.
Earthworms, leeches
Where do poriferans live?
They live at the bottom of the ocean, where they attach themselves to rocks.
This group has got 6 legs, antennae, and 3 main body sections.
Insects.
True or false: a squid is a bivalve.
False, a squid is a cephalopod.
True or false: Echinoderms have tentacles to help them attach to things.
False, they have tube feet.
How do poriferans eat?
They have pores, which water passes through.
This group has got ten legs, two of which are sometimes claws. Also, name an example.
Crustaceans.
Crabs, lobsters, prawns, shrimp.
Describe and give an example of a gastropod.
They have a large muscular foot to move, and some have a shell.
Example: snail, slug.
Most of these have a prickly structure on the outside. Also, name an example.
Echinoderms.
Example: starfish, urchins, sea cucumbers.
True or false: sponges are cnidarians.
False: they are poriferans.
This group has a segmented body with more than 10 legs. Also, name an example.
Myriapods
Centipede, millipede.
Describe and give an example of a bivalve.
They have two shells, with the soft body inside.
Examples: clams, oysters, mussels.
Some annelids are parasites. Where do they live?
They live inside other animals.
How do cnidarians catch prey?
They use venom in their tentacles.
This group has an abdomen, cephalothorax, and 8 legs. Also, name an example.
Arachnids.
Spiders, scorpions, ticks.
Describe and give an example of a cephalopod.
They have an internal shell, prominent head, and tentacles.
Example: octopus, squid, cuttlefish.
Their bodies are long and soft, and made up of rings.
Annelids
They do not have a head or a brain, only a mouth.
Cnidarians