Answer:
The prefix hetero- can mean "different." For instance, heterozygous means that something has two different alleles for a trait. Heterogenous identifies a mixture whose parts are not spread out in a fixed ratio. Heterochromia is a difference in color (for example, one of my eyes is orange while the other is green).
Hetero- can also mean "other" as well. A heterotrophic animal is one that can not make its own food. (It has to use another source for food). A person who is heterosexual has a desire for only the other sex.
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