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The first sand dollars formed during the period Paleocene. After that they diversified during the Eocene period.
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When are sand dollars born?
Sand Dollars do not keep their babies with them. The babies are free floating from the time they are born. The Sand dollars do not even have gestation period for they just release the ripe eggs and sperm to be fertilized outside.
What kills sand dollars?
Sand dollars have these cilia or hair-like structures underneath them that are used like legs. They are used for locomotion and if they are not moving (especially for a long period of time), they are probably dead by then.
Can sharks hop on sand for a short period of time?
NO
When is a good time to find sand dollars?
Sand dollars do not mate. They spawn, i.e they shed their sperm/eggs in the water in groups. The spawning happens between August-November.
How are sand dollars adapted to its environment?
over time it will evolve depending on its environment
What will happen to a sand pile if it rain for a long period of time?
Dissolves??????????????????????????????????????????????????????????????
Did men make sand?
No. Sand is made when waves crash against rocks over a very long period of time.
What time period did iguanodon live in?
Cretaceous period,
What time period did ankylosaurs live?
Cretaceous period
What time period did the Bachipods live in?
Ordovician Period
What is a ''sand dune''?
A sand dune is a hill of sand that was built up by an obstacle such as a rock and had sand blowing over it in one direction for a period of time. Over that period of time it builds up and gets gigantic and then sometimes collapses. People often visit these amazing sites. A sand dune is a sandy mountain in a desert or at a beach along the shore of an ocean.
What time period did madame cj walker live in?
what time and period did madame cj walker live
