Question

chloroplasts, the cell parts primarily responsible for photosynthesis. the chloroplasts continue to photosynthesize even after they are assimilated, a curious phenomenon that forces us to reconsider our assumptions about what animals are capable of.
perhaps even more impressive is the oriental hornet. in 2010, researchers discovered that this hornets yellow stripe contains a certain pigment that transforms light into electrical energy. this could explain why oriental hornets are more active in the middle of the day, when sunlight is the most intense, even though most other hornets are more industrious in the early morning.
like the rest of the animal kingdom, the oriental hornet and sacoglossan sea slug obtain energy from eating. yet they seem to be anomalous in their exceptional ability to use sunlight to create energy. science is still in the early stages of understanding these so - called \solar - powered\ animals.
what is the meaning of assimilated as used in the passage?
integrated
made similar
produced
broken down

Explanation:

To determine the meaning of "assimilated" in the passage, we analyze the context. The sentence says chloroplasts (responsible for photosynthesis in plants) continue to photosynthesize after being assimilated by an animal (the Sacoglossan sea slug, as implied by the text about "solar - powered" animals). "Integrated" makes sense here because if the chloroplasts are integrated into the animal's cells, they can still function. "Made similar" doesn't fit the context of cell parts in an animal. "Produced" is incorrect as the chloroplasts are not produced by the animal but taken in. "Broken down" would mean the chloroplasts can't function, which contradicts the fact they still photosynthesize.

Answer:

A. integrated