Final answer:
The Atlantic sea slug can undergo photosynthesis after eating algae.
Step-by-step explanation:
The process that the Atlantic sea slug can undergo after eating algae is photosynthesis. Photosynthesis is the process by which plants, algae, and some bacteria convert sunlight, carbon dioxide, and water into glucose (a sugar) and oxygen. The slug retains some of the algae it consumes and can use the chloroplasts within the algae to carry out photosynthesis, allowing it to produce its own food.
The variety of Atlantic sea slug mentioned in the question refers to a process known as photosynthesis. This process is not only confined to plants but also occurs in some algae and certain sea slugs that consume algae. When these sea slugs eat algae, they retain the chloroplasts from the algae cells within their own tissues. This retention enables the sea slugs to undergo photosynthesis themselves, utilizing the sunlight to produce energy, just as plants do. Therefore, the correct answer to the question is a) Photosynthesis.