Consider the following statements regarding marine microalgae:

1. Marine microalgae present higher photosynthetic efficiency than terrestrial plants,

2. Marine microalgae activate a protein called rhodopsin, which allows them to use sunlight as an alternative energy source to traditional chlorophyll-based photosynthesis.

3. The primary examples of marine microalgae include diatoms, dinoflagellates, and rhizobia.

How many of the statements given above is/are correct?