Describe three abiotic and three biotic components of an ocean marine ecosystem.(2 points)

Three abiotic components of an ocean marine ecosystem are:

1. Water: This is the most essential component of an ocean ecosystem, providing the medium in which all life exists and facilitating important chemical reactions.
2. Sunlight: Sunlight is crucial for photosynthesis, which is the process by which autotrophic organisms, such as phytoplankton and algae, produce food.
3. Oxygen: Dissolved oxygen in the water is necessary for the survival of marine organisms, as they require oxygen for respiration.

Three biotic components of an ocean marine ecosystem are:
1. Phytoplankton: These microscopic algae are primary producers in the ocean, forming the base of the marine food web and providing food for other organisms.
2. Zooplankton: These tiny organisms feed on phytoplankton and serve as an important food source for larger marine animals, such as fish and whales.
3. Fish: Fish are a diverse group of organisms that play a significant role in ocean ecosystems, serving as both predators and prey in the food chain.