(I'm not sure but i think these are the answers)
composed of one or more cells
contains genetic program
acquires and uses energy
The abiotic factor that is essential for all aquatic ecosystem with the exception of hydro thermal vent is SUNLIGHT, THIS IS BECAUSE IT PROVIDES A SOURCE OF ENERGY.
Sunlight is very essential for aquatic ecosystems because it is the principal source of energy from which aquatic plants trap energy to make their food and provided mean of sustenance for themselves and other organisms in the water.
Answer:
en los jugos pancreáticos hay bicarbonato de sodio que neutraliza la alta acidez.
