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Yes, they have (primitive) sense organs anteriorally placed - this represents cephalisation, as does the aggregation of nervous tissue to monitor and respond to impulses from the anterior sense cells/organs.
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∙ 12y ago
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∙ 15y agoCephalization is basically having a head. Planaria have concentrated sensory structures on one end of their body, so they have cephalization.
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∙ 12y agothey show oraganism shavings inside of the gizzard of the endoskeleton.
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∙ 11y agoeyespots, concentration of nervous sys (primitive) in anterior region (i.e. you can tell there is a head)
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∙ 14y agoplanarian cephalization is developed..
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∙ 11y agoso first they mate till they orgasm
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it is not his eyes he just has them therir.
How long does it take for planaria to regenerate?
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It will regenerate and become two and both of the parts will squirm around.
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What is two ways to show two thirds?
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What two ways to show 2over3?
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