Answer :
Answer: Option A) convergent.
Explanation:
- Convergent evolution is a type of evolution in which the organisms evolve independently and attain similar traits in order to adapt to similar environments even though they are not closely related.
- The similarity can be in terms of body forms, body color, organs, and adaptations.
- The structures formed due to convergent evolution are analogous structures that perform a similar function but have a different origin.
- So green and blue algae show convergent evolution as they look similar but are not closely related.