If every primary and secondary consumer suddenly disappeared from the earth, which of these effects would the autotrophs left
on the planet experience?
reduced reactants for making food
less competition for sunlight
greatly increased amounts of CO2 in the atmosphere
increased reactants for making food

Which ocean zone has the most abundant primary producer and why a) the abyssopelagic zone ,du to the absence of light and cold water temperatureb) the bathypelagic zone, due to the absence of light and cold water temperaturec) the mesopelagic zone ,due to uts high light availability and warm water temperature d) the epipelagic zone,due to its high light availability and warm water temperature