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Question

Choose the correct answers from the alternatives given.
Red algae differ from green algae and brown algae in having:

A
no chlorophyll a
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B
no differentiated cells
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C
hemoglobin within their cells
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D
no flagellated stages in their life cycles
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Solution

The correct option is D no flagellated stages in their life cycles
The members of the brown algae family have a different type of gametes that are biflagellated zoospores. These are pear-shaped and have two unequally attached flagella
The members of the family red algae reproduce asexually by non-motile spores and sexually by non-motile gametes. They do not have a flagellated stage in their life cycle.
So, the correct option is 'no flagellated stages in their life cycles'

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