Question

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

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

Answer 1

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'