This is a requirement of photosynthesis that coral reefs need due their photosynthesizing symbionts.
What is sunlight?
Jellyfish exchange gases: they emit ____ and diffuse ____ .
What is CO2 and O2.
This organism has a protective coating that protects them from the stinging cells of the sea anemones in which they inhabit.
What is clownfish?
All cnidarians -- coral, jellyfish, and anemones -- all share this defense mechanism.
What are stinging cells?
The beneficial relationship between coral and zooxanthellae is known as...
What is symbiosis?
True or False: The medusa (bell shaped body) of the jellyfish provides protection.
What is false?
The characteristic that these organisms share with others in its phylum.
What is stinging cells?
The individual organisms (the coral animals) that make up coral and anemones have a basic structure called...
What is a polyp?
One type of coral that is a stony (hard) coral.
What is Brain OR Staghorn or Star?
A simple network of neurons that allow jellyfish to respond to external stimuli.
What is a nerve net?
The mechanism sea anemone's use to capture food (similar to that of jellyfish).
What is stinging cells/nematocysts?
Name one type of soft coral.
What is Whip OR Sea Fan or Plume?
The name of the symbiotic photosynthesizing organism that lives inside the tissues of coral.
What is zooxanthellae?
The inner layer of jellyfish.
What is the gastrodermis?
The body plan that anemones share with the animals that live inside coral.
What is polyp?
What are nematocysts?
Name one substance coral need from their environment to produce their hard limestone exoskeleton.
What is calcium carbonate or carbon dioxide?
Refers to the umbrella-shaped body plan of jellyfish.
What is medusa?
Anemone's sense stimui similarly to jellyfish due to this simple nervous system network that they share.
What is a nerve net?
Cniderians consist of four subgroups: the Scyphozoa (jellies), the Cubozoa (box jellies), the Anthozoa (sea anemones), and Hydrozoa known as _________ .
What are hydroids?