sunlight is the correct answer. 100%.
1) Oceans have living organisms, and2) Oceans cover about 2/3 of the surface of planet Earth.
Yes, the photosynthetic organisms are regulated near the surface according to surchams theory, and the microorganisms innterrelated neighbours are found near the focus of the ocean on the oceanic boundary.
The surface of the ocean absorbs about 2.6 gigatons of carbon from the atmosphere every year. This process helps to regulate the Earth's carbon cycle and mitigate the effects of climate change.
Evaporation occur at the surface of the ocean.
Upwelling brings up tiny ocean organisms, minerals, and other nutrients from the deeper layers of the water. Without this motion, the surface waters of the open ocean would be very scarce in nutrients.
No, plantlike organisms generally require sunlight for photosynthesis, which is limited below 1000 meters in the ocean. Below this depth, the lack of light makes it challenging for plantlike organisms to survive and thrive due to the limited energy available for photosynthesis.
Below 1000 meters in the ocean, you would not typically find plantlike organisms like those found in shallower waters. This is primarily due to the lack of sunlight, which limits photosynthesis, the process that most plantlike organisms rely on for energy. The deep ocean is primarily inhabited by organisms that have adapted to survive in dark, high-pressure environments, such as chemosynthetic bacteria and various types of zooplankton and deep-sea fish.
open-ocean surface zone
Plankton
Phytoplankton
The answer to your question is phytoplankton
Phytoplankton
Phytoplankton
mbae
Yes, nutrients in the deep ocean primarily come from the decomposition of dead marine organisms. When these organisms die, their bodies sink to the ocean floor, where bacteria and other decomposers break them down, releasing essential nutrients like nitrogen and phosphorus into the surrounding water. This process, along with the input of organic matter from surface waters, helps sustain deep-sea ecosystems. Additionally, upwelling currents can bring these nutrients back to the surface, supporting marine life.
Most plants and animals live in the Sunlit Zone.
One key adaptation that helps ocean organisms stay near the sunlit surface is the development of buoyant structures, such as gas-filled bladders in fish and certain jellyfish. These adaptations allow them to maintain their position in the photic zone, where sunlight is abundant for photosynthesis. Additionally, many marine organisms, like phytoplankton and some zooplankton, have evolved to have small, lightweight bodies that facilitate buoyancy and enable them to thrive in these sunlit waters.