Cnidaria 1
The meaning of first part of the word Cnidaria.
What is nettle?
The biggest coral reef on Earth
Cnidarians with waving tentacles above them
What is a Poylup?
The name of the phylum that includes sea stars, sand dollars, sea urchins, and sea cucumbers
What is Echinoderm?
The food of the basket stars and crinoids.
What is plankton?
A whole coral colony that has lost its coloring.
What is Coral Bleaching?
Where do corals most often grow?
In warm water to feed on Phytoplankton.
Cnidarians with dangling tentacles below them
What is a medusa?
The meaning of the word echinoderm.
What is Spiny Skin?
How do some species of sea cucumber defend themselves
By expelling their innards.
When a sea anemone reproduces by growing a small “bump” that then pinches off the body, attaches to the sea floor, and grows.
What is budding?
Location of the mouth on a cnidarian
The middle of the body.
Because Jellyfish cannot swim against the current, they are called this.
What is plankton?
What did clam fishermen once do to keep sea stars from eating the clams? And why did this not work out for them
They cut them in half. This did not work because two starfish grew from each half.
Why are sea urchins a problem in the Pacific?
They eat kelp and kill off kelp forests.
The name of a colonial organism.
What is a Siphonophore?
The difference between a polyp and a medusa.
A polyp has waving tentacles, and a medusa has dangling tentacles.
How do sea anemones and corals differ from jellyfish?
Sea anemones and coral are sessile, while jellyfish are planktonic.
The name of the Cnidarians' intriguing stinging cells
What are Nematocysts?
Why are sponges not plants?
Name of the animals that make up a siphonophore
What are Zooids?
What does it mean that the Portuguese man-of-war is a colonial animal?
It is not one animal but made up of many.
The algae give much-needed nutrients to the coral, allowing them to grow faster.
The name of the arrangement of a sea urchin’s teeth.
What is Aristotle's lantern?
Name one way sponges are harmful to coral.
They block the sunlight, spread 'black disease', and some weaken the coral by growing into it.