Invertebrates
Name the three basic body structures of invertebrates.
bilateral symmetry, radial symmetry and asymmetry
Poriferans´ bodies are covered in small holes called _____.
pores
Name two examples of annelids.
earthworms and leeches
How many parts can we divide adult echinoderms into?
We divide them into five parts.
Name the three body parts of molluscs.
head, a foot and visceral mass
Name the different groups of invertebrates.
How do poriferans eat?
They are filter feeders. They capture food particles from water.
TRUE OR FALSE
Annelids do not have a skeleton.
True
How do echinoderms breathe?
They can breathe through their gills and ambulacral system.
What is a molluscs rasping tongue and teeth called?
What does ¨hermphrodite¨mean?
They possesss both male and female reproductive organs.
polyps or medusae
Most annelids move around using tiny bristles called ______.
chaetae and setae
Name two examples of echinoderms.
seas stars, sea urchins, sea cucumbers and feather stars
What sense do molluscs have?
sight, taste, touch and smell
What is the difference between microphagous and macrophagous animals?
Cnidarians have a mouth surrounded by ____ and a digestive cavity.
tentacles
What do annelids´sense organs detect?
light, vibration and taste.
TRUE OR FALSE
Echinoderms have bilateral symmetry.
False. They have radial symmetry.
What are the three groups of molluscs?
gastropods, bivalves and cephalopods
In what ways can invertabrates complete respiration?
through their skin, gills, trachea or lungs
What are the three groups of Cnidarians called?
Which kind of annelids have setae?
polychaetes and oligochaetes.
How do we classify echinoderms?
Asteroids, Echinoids, Holothurians and Crinoids.
cephalopods