Zoology Question
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Which statement is true regarding the three subclasses of mammals?
- Monotremata are mammals that lay eggs.
- Metatheria are mammals that have pouches in which to carry their young.
- Eutheria are mammals that carry the unborn within the uterus until later stages of development.
- Eutheria are mammals that live in aquatic ecosystems.
- a, b, and c
- a, b, c, and d