WebAug 2, 2024 · Echinoderms are a type of marine animal that includes sea stars, sea urchins, and sand dollars. Most echinoderms reproduce sexually, meaning they need both male and female gametes (sex cells) to create offspring. The male echinoderm releases his sperm into the water, and the female picks it up with her reproductive organs. WebMar 5, 2024 · They may live in water that is shallow or deep, warm or cold. A few species live in freshwater. Some cnidarians live alone, while others live in colonies. Corals form large colonies in shallow tropical water. They are confined to shallow water because they have a mutualistic relationship with algae that live inside them. The algae need sunlight ...
Echinoderms Traits, Types & Roles - Video & Lesson Transcript
WebJan 23, 2024 · Echinoderms are marine organisms which means they live in the ocean. They are found in all marine waters on Earth although there are few species living in the Arctic. … WebAug 25, 2024 · Echinoderms start their lives as free-swimming larvae, and some retain the ability to swim as adults. Some sea cucumbers spend most of their lives floating above the ocean floor, and feather... can snails eat peppers
Where Do Echinoderms Live Biology Dictionary
WebMay 31, 2024 · Most echinoderms use their tube feet to move along slowly and to capture food. How do tube feet help echinoderms survive? They are known for their five-point radial symmetry and specialized water vascular system, which depends on changes in water pressure to extend or contract tiny tube feet. http://www.oceanicresearch.org/education/wonders/echinoderm.html WebSep 28, 2024 · This protein also helps the echinoderms to survive in harsh environments. How do echinoderms get rid of waste? Echinoderms, such as sea urchins and sea cucumbers, use a variety of methods to remove waste. Some echinoderms secrete a slimy substance that attracts prey, and other echinoderms produce a toxin that causes the … can snails get out of their shells