"The sexes are separate and gametes are released into the water column as in most echinoids. The free-swimming larvae metamorphose through several stages before the test begins to form and they become bottom dwellers. "
http://octopus.gma.org/Tidings/sanddollar.html
"Like many others in their group, sand dollars reproduce by a method called "broadcast spawning". Sand dollars have separate males and females, and they produce sperm and eggs. When the conditions in the ocean are just right (temperature, salinity, etc.), all of the sand dollars in a local area will release their eggs and sperm at the same time. The eggs and sperm meet in the water, and the eggs are fertilized. The developing sand dollars now float around the ocean at the mercy of the currents. After floating around and growing for a while, the young sand dollars will settle down on a sandy area, and develop into adults."
http://oceanlink.island.net/ask/echino.html#anchor276699
2007-05-14 04:46:38
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answer #1
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answered by Yahzmin ♥♥ 4ever 7
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Yeah, of direction i might. How ought to a mom abandon their toddler merely simply by fact it has a deformity! Who is conscious, this toddler may be the subsequent olympic gold medalist for bypass united states of america. I mean, run with 2 legs at a time, while they get sore, change over! Haha. yet no, particularly, i might shop my toddler, no rely what deformity. you already know once you get pregnent that their is an probability of having a deformed toddler. in case you do not elect to stay with that probability, don't get pregnent! undertake! If I had infants, i might additionally undertake a toddler with a deformity (whether that is actual or psychological, that is not significant). i'm not likely to fell out the checklist with "Please supply me a deformed toddler" yet they ask issues like: might you're taking a caucasion toddler? might you're taking an african american toddler? might you're taking an oriental toddler? might you're taking a (different ethnicity) toddler? might you're taking a mentally sick toddler? might you're taking a bodily handicapped toddler? All my solutions might make certain.
2016-11-28 02:54:59
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answer #2
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answered by ? 4
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they have sex....and blue whales takes care of the babies
2007-05-14 04:46:18
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answer #3
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answered by Anonymous
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Wow, very informative. I mean it, good question!
2007-05-14 04:50:23
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answer #4
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answered by Anonymous
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