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Starfish
Also known as sea stars, these echinoderms are 2,000 species strong and found in seas and oceans all over the world. They can vary in size from less than half an inch to more than four feet across.
1,388 Questions
What kingdom do brittle stars belong to?
kingdom animalia --- phylum echinodermata--- class Ophiuroidea
What prevents starfish from surviving on land?
A starfish can only live on the and for a very short time before they die. Starfish depend on saltwater to keep them alive and dry out and die when out of the water.
How long does it take for a starfish to eat?
well starfish can sleep up to 12 hours like humans,but they dont have to sleep...
Can you eat a starfish or are they poisonous?
Starfish are not poisonous, they are often considered a delicacy.
Is it harmful if a dog eats a starfish?
Almost all starfish are non-poisonous. The exception that comes to mind is the Crown of Thorns starfish, that carries a toxic charge on its spines. However, it's painful to even pick up, much less eat. I think you're okay on this one.
What is the body temperature of a starfish?
Since the starfish is a cold-blooded animal, its body temperature is the same temperature as the surrounding water it lives in. Each starfish's temperature varies.
Yes. The stomach of a starfish is located in the central disc. The stomach actually shoots out from the mouth and it secretes digestive juices that liquidize the prey and then a tube sucks up the liquid.
How do you dissect a starfish?
need: scissors Most people disect starfish starting at the optic cushion (sensory organ at tip of arms - looks like a slit) and cut along the arm then cut around the middle part of the starfish. You can do this to any or all of the legs and you can see all the organs this way.
How many tube feet are on a sea star?
five-six, they could have more depending on how many arms they have.
How is a starfish adapted to life on the seashore?
Two adaptations:
- Starfish live in water, so they have a water vascular system for respiration, exchanging oxygen and carbon dioxide.
- Starfish's bodies are radial symmetric, so if they are cut in half, two starfish are made instead of just one.
What is the ambulacral ridge of a starfish?
It is the part that extends from the ring canal, all the way to the tip of the starfish. It's under the gonad.
