The nervous system of a starfish is not very advanced, but starfish are still able to sense things in their environment. Cells on the starfish are able to sense light, temperature and other changes in their environment.
Echinoderms (essentially, a microscopic fire breathing dragon) emit numerous electomagnetic waves. When measured, scientists have found repeating and organized patterns in these energy waves (C.Guenther, Scientific American, 2007). It is now thought that this is a type of sonar location or perhaps communication. So they produce these waves, and possibly receive them from one another. It will be exciting to see if we can actually learn to communicate with these tiny little life forms, and thus learn more about ourselves.
Sea anemones have no visible sense organs, but they can distinguish between edible and inedible items. If you were to drop a piece of paper onto its tentacles, a sea anemone would grasp but then discard it. But if you first soaked the paper in clam juice, the anemone would grasp, then swallow the paper, because it tastes like food.
A sea anemone also uses its nematocysts for defence: a mouthful of poisonous barbs is unappetizing to most animals.
They only have the sense of sight. They have 1 simple eye on each end of their points. This makes them only allowed to see light.
All starfish have a small "eyespot" at the end of each arm. This spot senses light, but is not sophisticated enough to allow them to see images.
Starfish generally do not have contact with other starfish. However, biologists have proven that during the breeding season, starfish send out signals when they are ready to reproduce. This causes the starfish to congregate during this time period.
Starfish are sensitive to touch, light, temperature, orientation and the status of the water around them. The tube feet are sensitive to chemicals, enabling the starfish to detect odor sources such as food.
there are cusion starfish, reef starfish, spiny starfish and fire brick starfish in new zealand.
It is called toilet water.
Starfish do not lay eggs like other animals; therefore, zero times. Uniquely, starfish are able to reproduce both sexually and asexually. Asexual reproduction in starfish generally involves the dismemberment of an appendage that grows into a exact copy of the parent. This form of reproduction is not ideal, and only occurs when an appendage is lost (not on purpose). Sexual reproduction occurs through a process called spawning. Rather than lay eggs on solid ground, starfish of both sexes release millions of free-floating sperm and eggs into the water through gonads, sexual organs on a starfish's arms. Starfish may undergo spawning multiple times in one breeding season, dependent on the species.
Sure, starfish larvae are planktonic. Adult starfish are not.
Yes they can
a starfish from the carribean?
it is a starfish which is married
Starfish Ancestors
they are starfish that is spiny