The best option for her is the presence of bright sunlight. If you constantly illuminate the container with water in which chlamydomonas live, on the one hand, after a while you can notice that there are clusters of these plants. The light-sensitive eye of the algae perceives light, and with the help of flagella, it moves towards a more illuminated place. This desire for light is called positive phototaxis. But chlamydomonas is able not only to feed on the products of photosynthesis, but also to absorb ready-made organic matter throughout the body surface.
Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.