Final answer:
A marine ecologist studies the interactions between living organisms and their environment in the ocean.
Step-by-step explanation:
A marine ecologist studies the interactions between living organisms and their environment in the ocean. Some of the subjects that a marine ecologist would include in their studies are:
- The food chain and energy flow in marine ecosystems
- The effect of pollution on marine life
- The impact of climate change on marine habitats
- The diversity and distribution of marine species
- The conservation and management of marine resources