Final answer:
Ex situ conservation involves conservation of biodiversity outside their natural habitats, while in situ conservation involves conservation within their natural habitats.
Step-by-step explanation:
Ex situ conservation refers to the conservation of biodiversity outside their natural habitats. It involves taking species out of their natural environment and placing them in a controlled setting, such as zoos, botanical gardens, or captive breeding programs, to ensure their survival.
In situ conservation refers to the conservation of biodiversity within their natural habitats. It involves the protection and management of ecosystems, so that species can thrive in their natural environment. National parks, wildlife reserves, and protected areas are examples of in situ conservation.