How does the amount of biomass in terrestrial ecosystems differ from the amoujt of biomass in aquatic ecosystems

The amount of biomass in terrestrial ecosystem is small compared to that of the aquatic ecosystem

Explanation:

Terrestrial biomass generally decreases markedly at each higher trophic level. Terrestrial producers are grasses, trees or shrubs. They have a much higher biomass than the animals that consume them. The marine biomass increases at each higher trophic level.

The biomass of consumers is larger than the biomass of primary producers. The  primary producers in the ocean are tiny phytoplankton that grow and reproduce rapidly, so a small mass can have a fast rate of primary producers. In terrestrial ecosystem, primary producers grow and reproduce slowly, so a much larger mass is needed to achieve the same rate of primary production.

answer: - few nutrients

high pressure

low temperatures

explanation: 1. few nutrients:   open-ocean zone is located way far from the land, which is the main source of the essential nutrients.2. high pressure: pressure increases by 1 atmosphere for every 10 meters increase in depth.3. ample sunlight: a large fraction of the sunlight is reflected back to the atmosphere from the sea surface. 4. varying salinity: below the thermocline, the water is isolated from the atmosphere so the salinity remains stable over the year.5. low temperatures:   the temperature of open-ocean zone ranges from a low of -2°c to an average of 17°c

during the process of dna replication, brdu can replace thymidine and incorporate into the newly synthesized dna, cell proliferation thus can be reflected in the extent of brdu incorporation.