The most important group of producers in marine ecosystem is of__________?

A. Diatoms
B. Euglenoids
C. Dinoflagellates
D. Brown algae

Lime stone deposits are formed from__________?

A. Zooflagellates
B. Foraminferans
C. Aetinopods
D. Apicomplexans

Of the following which one is not the characteristic of dinoflagellates?

A. Most of them are unicellular
B. They have blooms
C. Their cells are often covered with shells of interlocking cellulose plates impregnated with calcium
D. None of these

Which of the following statement about eiliates in incorrect_____________?

A. Contain mainly unicellular organisms.
B. Their contractile vacoule is respobsible for water regulation.
C. They are even capable of sexual reproduction.
D. Diploid nucleus being smaller is responsible for cells metabolism and growth while polyploidy nucleus functions in sexual process.

Examples of Rhodophytes are___________?

A. Chondrus
B. Polysiphonia
C. Both of these
D. Pinnularia

In chlorophytes the main energy stores are__________?

A. Cellulose
B. Starch
C. Glycogen
D. All of these

Radiolarians belong to which of the following protozoal group____________?

A. Zooflagellates
B. Actinopods
C. Foraminifera
D. Apicomplexans

Of the following which one is not the characteristic of green algae?

A. Some green algae possess cell wall with cellulose
B. They are generally accepted as the ancestors of green plants
C. Chlorella is unicellular non-motile green algae
D. None of these

Which of the protozoa has a striking resemblance to collar cells in sponges_____________?

A. Zooflagellates
B. Choanflagellates
C. Trypanosomoa
D. Trichonymphas

In slime molds spores develop into__________?

A. Swarm cells
B. Biflagellated cells
C. Amoeboid reproductive cells
D. All of these