Which of the following is the currently accepted theory to explain HNLC regions?
a. Cold temperatures inhibit phytoplankton growth.
b. Toxicity of nutrients inhibits phytoplankton growth.
c. Low light intensity inhibits phytoplankton growth.
d. Intense grazing by whales maintains low phytoplankton biomass in these areas.
e. Low concentrations of micronutrients inhibit phytoplankton growth.

Respuesta :

Answer: The currently accepted theory to explain HNLC (High Nutrient, Low Chlorophyll) regions is:

e. Low concentrations of micronutrients inhibit phytoplankton grow


Explanation: In these regions, despite high concentrations of nutrients such as nitrates and phosphates, phytoplankton growth is limited by low levels of micronutrients such as iron.