Question

Which ecosystem has the highest gross primary productivity?

• A. Desserts
• B. Coral reefs
• C. Mangroves
• D. Grasslands

Answer 1

The correct option is B Coral reefs

There are many ecosystems which have a very higher level of primary productivity. Coral reefs show the highest gross primary productivity in the aquatic ecosystem. There are the wide number of phytoplankton and aquatic phototrophs which contribute to the productivity of the ecosystem. Tropical rainforests have the highest primary productivity on the terrestrial ecosystem.

So, the correct answer is option B.