Question

How does life change in aquatic biomes as depth increases?

Answer 1

Life in aquatic biomes changes as depth increases due to factors such as light availability, temperature, dissolved oxygen, and nutrients. The photic zone extends to a maximum depth of 200 meters, beyond which light cannot reach. Different organisms are adapted to the conditions found in each zone, resulting in a diverse range of species in aquatic biomes.

Step-by-step explanation:

Aquatic biomes undergo changes in their living conditions as the depth increases. One important factor is the availability of light. The photic zone, where sunlight penetrates enough for photosynthesis to occur, extends to a maximum depth of 200 meters. Beyond this depth, known as the aphotic zone, light cannot reach. As a result, organisms in the aphotic zone rely on other sources of energy, such as chemosynthesis or consuming other organisms.

Another important factor is temperature. As water depth increases, temperature decreases, but it remains above freezing. This can affect the types of organisms that can survive in deeper parts of aquatic biomes.

Abiotic factors like dissolved oxygen levels and nutrients also vary with depth. Water near the surface of lakes and the ocean usually has more dissolved oxygen than deeper water, while deeper parts of the ocean are nutrient-rich due to dead organisms that fall from upper layers. These factors shape the structure and diversity of aquatic biomes at different depths.

Answer 2

LIfe much change in that there is less light and higher pressure. Therefore the organisms must be able to survive with little vitamin D (since that comes from the sun) and also they must not need as much warmth or as much oxygen. Most have their own way to produce light (jelly fish) and they must have a flexible skeleton so that it does not get "smooshed"(crush) by the high pressure.