About Echinoderms
Where do Echinoderms' live.
what is marine Environments ranging from shallow coastal water to ocean trenches.
what type of symmetry is Echinoderms
What is radially symmetrical
What is 7,000
How many rows of tubed feet on each arm
What is 2 rows
What 2 types of stomachs do sea stars have
What is...
Cardiac Stomach
Pyloric Stomach
What animals are Echinoderms.
What is sea stars, sand dollars, sea urchins, and sea cucumbers
True or False
Echinoderms are always radially symmetrical throughout their lives.
what is False
Echinoderms are bilaterally symmetrical as a larva.
what class is means "Lily-like"
what is Class Crinoidea
What is the name for the numerous tiny pincers of a sea star.
What is pedicellariae
True or False
Sea Stars have no circulatory, excretory, or respiratory organ systems.
What is True
Describe the colors of Echinoderms
What is Brilliantly
About how far back do Echinoderms date back to.
what is 500 million years
what class has about 900 species and means "Spinelike"
What is Class Echinoidea
what is a network of water-filled canals that are connected to the tube feet.
What is Water-Vascular system
What type of nervous system does seas stars have.
What is a Nerve ring and radial nerves
About how big in diameter do Echinoderms get.
What is 1cm to 1m
Are Echinoderms sessile, able to move, or change throughout their lives
What is Changes throughout their lives
How are Sea stars economically important.
What types of canals do seas stars have
What is...
Stone Canal
Ring Canal
Radial Canal
How many eggs do females produce a year
what is 200 million eggs.
What phylum are Echinoderms a part of.
What is Echinodermata.
What are Echinoderms four major characteristics
what is...
1. radical symmetry with five along spokes
2. endoskeleton known as ossicles
3. water-vascular system
4. tube feet- small movable extensions
What are the names of all five classes of Echinoderms.
what is...
Class Crinoidea
Class Ophiuroidea
Class Echinoidea
Class Holothuroidea
Class Asteroidea
what is the upper end of each tube foot is expanded to form a bulb like sac called?
What is Bipinnaria