Which of the following techniques is used for identification and enumeration of algae, bacteria, protozoa?

Which of the following zones have considerable rooted vegetation?

In which of the following seasons does the nutrient concentration falls at a drastically lower level?

The coastal adjunct of the marine ecosystem is __________________

In regions of the estuary that are nutritionally poor, it is more likely to find which of the following organisms?

The characteristic color of the Red Sea is associated with heavy blooms of __________________

Which of the following genus of bacteria is not found in fresh waters?

Which of the following aquatic organisms contribute in a small amount to the shallow estuary food web?

Which among the following are referred to as the “pasture of the sea”?

The term fertility of oceans is used to express the capacity for the production of inorganic matter.

What amount of dry organic matter is produced by deep ocean areas?

In which of the following water bodies, fertility is high?

Which of the following product is not obtained from dissimilation of organic matter under aerobic conditions?

Which of the following organism have siliceous skeletons?

Which of the following forms of water is the most contaminated?

The coliform group of bacteria includes all the __________________ bacilli.

Which of the following organism does not belong to coliform group of bacteria?

Coliforms are natural inhabitants of the large intestine of human and animals.

Which of the following acts as a carbon source for Enterobacter aerogenes?

What will be the plate count of good quality water?

Among the following which microorganism acts as a representative of fecal streptococci group?