Brittle stars, an invertebrate species closely related to the sea star, have varied reproductive strategies. Different species spawn and brood, while most can reproduce asexually through cloning. Brittle star asexual reproduction worksheet than 1, different species of brittle stars have been identified.
They can be found in every ocean on the planet, at
Brittle star asexual reproduction worksheet depth. Brittle stars, a type of echidnoderm, have five flexible, jointed arms attached to a body. The mouth and anus are on the bottom of the disk. They live in large groups around coral and rock formations on the ocean floor. Brittle stars use their arms to push themselves along. They also have tube feet along the bottoms of their arms Brittle star asexual reproduction worksheet excrete an adhesive, enabling them to climb up the sides of rocks and fish tanks.
If they lose an arm a predator, they can regenerate a new one. Spawning is the most common way brittle stars reproduce. Male and female brittle stars release sperm and eggs, respectively, into the water. Fertilized eggs develop into four-armed swimming larvae called ophioplutei. The tiny ophioplutei feed on plankton for a few weeks and Brittle star asexual reproduction worksheet through a metamorphosis to become five-armed juvenile brittle stars.
Brittle star asexual reproduction worksheet what known as their settling stage, the juveniles sink to the ocean floor.
Some species fertilize and brood their eggs in a special chamber inside the
Brittle star asexual reproduction worksheet body until Brittle star asexual reproduction worksheet reach the juvenile stage. The juveniles leave when they are approximately 2 millimeters in diameter and are able to crawl. Smaller species of brittle stars tend to brood more than the larger species. Brittle stars can reproduce asexually in two ways.
When one or more arms and a portion of the central body break off, both pieces of the brittle star will grow new bodies and arms to form two animals. Brittle star juveniles can also reproduce during their settling stage.
When metamorphosis is almost complete, the baby brittle stars lose last two larval arms. Special tissue at the point of attachment creates new ophioplutei, which swim off to develop into brittle stars.
What Are Brittle Stars?
Spawning Spawning is the most common way brittle stars reproduce. Brooding Some species fertilize and brood their eggs in a special chamber inside the female's body until they reach the juvenile
Brittle star asexual reproduction worksheet. Asexual Reproduction or Cloning Brittle stars can reproduce asexually in two ways.
Video of the Day. Brought to you by Cuteness. References 5 A Brittle star asexual reproduction worksheet Odyssey: Ophiopholis aculeata Reef Education Network: Brittle Star Invertebrate Embryology: Brooded Juvenile Brittle
Brittle star asexual reproduction worksheet. Author Kimm Hunt has been writing professionally since Accessed 16 November How Do Brittle Starfish Reproduce? Depending on which text editor you're pasting into, you might have to add the italics to the site name.
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