The Chlorophyceae are one of the classes of green algae, distinguished manly on the basis of ultrastructural morphology. The following orders are typically recognised:
In older classifications, the term Chlorophyceae is sometimes used to apply to all the green algae except the Charales, and the internal division is considerably different.
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The axis of the gyroscope in the Dynabee is fixed to the spinning mass and it rests in a little groove ...