Which two heterotrophic organisms most commonly derive nutrition from endosymbiotic relationships with photosynthetic protists?
1. ciliates
2. slime molds
3. parabasalids
4. reef-building coral animals
5. foraminiferans
A) 4 and 5
B) 2 and 4
C) 3 and 4
D) 2 and 3
E) 1 and 2
Ans: A) 4 and 5
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