Answer to Question 1ANS: T
The high biomass in an area can interfere with light penetration. The autotrophs in this area makes
carbohydrates at a slower rate. Information can be found in the section Measuring Primary
Productivity.
Answer to Question 2ANS: F
Coccolithophores are found at the surface in brightly lighted areas. Their coccolith coverings may
provide protection from getting too much light. Information can be found in the section Most
Phytoplankton are Photosynthetic Autotrophs.