Toggle Navigation
Games
Blog
News
Class PIN
Join for Free
Sign in
Toggle Navigation
Games
PIN
Join for Free
Blog
Pricing
News
Contact us
Help center
Sign in
Study
Invertebrates Bio 1st ESO
0
%
0
0
0
Back
Restart
What are cnidoblasts?
stinging cells that give this group its name.
Oops!
Okay!
Cnidaria have one opening surrounded by _________ with stinging cells.
tentacles
Oops!
Okay!
What is the habitat of most cnidarians?
the ocean
Oops!
Okay!
True or false: The osculum is part of cnidaria.
False. It is part of the sponge which is Porifera.
Oops!
Okay!
Where do corals and sea anemones live?
Attached to the ocean floor
Oops!
Okay!
These are the simplest invertebrate animals. They have no organs (2 types).
Porifera and Cnidaria
Oops!
Okay!
How do sponges feed?
They are filter feeders. They feed on oxygen and small particles of nutrients suspended in water.
Oops!
Okay!
What group of invertebrates is this?
Porifera (it's a sponge)
Oops!
Okay!
The body wall of a sponge is full of tiny holes called ___________.
pores
Oops!
Okay!
What group of invertebrates is this?
cnidaria- it is coral
Oops!
Okay!
True or False: All invertebrates are motile (moving).
False. Some are also sessile (stationary)
Oops!
Okay!
Cnidaria have a __________ __________ like a stomach, connected to their mouth.
gastrovascular cavity
Oops!
Okay!
Most invertebrates have an external skeleton called an ____________.
exoskeleton
Oops!
Okay!
Which Cnidaria stage does the jellyfish represent?
medusa stage
Oops!
Okay!
What is this? What group of invertebrates is it in?
Sea anemone? Cnidaria
Oops!
Okay!
What are the three groups of cnidaria?
jellyfish, seas anemone, and corals
Oops!
Okay!
The invertebrate group _________ consists of sponges.
Porifera
Oops!
Okay!
What do "motile" and "sessile" mean?
motile: moving/ sessile: stationary
Oops!
Okay!
Water enters a sponge through its ______________ and deposits nutrients.
central cavity
Oops!
Okay!
How do cnidarians feed?
They are carnivorous predators
Oops!
Okay!
True or False: Invertebrates do not range in size. They are all very small.
FALSE- Vertebrates have a wide range of sizes. From microscopic water fleas to the GIANT squid.
Oops!
Okay!
As adults, sponges are all motile. True or False?
False. They are all sessile, and live attached to rocks or coral.
Oops!
Okay!
Why do cnidaria have stinging cells?
To paralyze prey
Oops!
Okay!
An invertebrate's environment where it lives is also known as its _____________.
habitat
Oops!
Okay!
Invertebrates live in two kinds of environments. What are they?
Aquatic and terrestrial
Oops!
Okay!
Your experience on this site will be improved by allowing cookies.
Allow cookies