| 1. | can fix atmospheric nitrogen |
| 2. | is an endoparasite in humans and cattle |
| 3. | is the main group of algae involved in lichen symbiosis |
| 4. | is a dinoflagellate |
| 1. | Both lying longitudinally between the wall plates |
| 2. | One lying longitudinally and the other transversely in a furrow between the wall plates |
| 3. | Both lying transversely between the wall plates |
| 4. | But do not help in their movement |
| List I | List II | ||
| A. | Diatoms | I. | Pellicle instead of cell wall |
| B. | Dinoflagellate | II. | Red tides |
| C. | Euglenoid | III. | Chief producers in oceans |
| D. | Sporozoan | IV. | Malaria |
| Column-I | Column-II | ||
| (a) | Diatoms | (i) | African sleeping sickness |
| (b) | Dinoflagellates | (ii) | Cell wall has stiff cellulosic plates |
| (c) | Flagellated protozoan | (iii) | Malaria |
| (d) | Sporozoan | (iv) | Cell wall embedded with silica |
Match the following and choose the correct combination from the options given –
|
Column I (Group Protista) |
Column II (Example) |
||
|
A. |
Chrysophytes |
i. |
Paramaecium |
|
B. |
Dinoflagellates |
ii. |
Euglena |
|
C. |
Euglenoids |
iii. |
Gonyaulax |
|
D. |
Protozoans |
iv. |
Diatoms |
1. A - i, B - iii, C - ii, D - iv
2. A - ii, B - iv, C - iii, D - i
3. A - iv, B - ii, C - iii, D - i
4. A - iv, B - iii, C - ii, D - i
| List-I (Group) | List-II (Example) | ||
| A. | Chrysophytes | I. | Gonyaulax |
| B. | Dinoflagellates | II. | Diatoms |
| C. | Euglenoids | III. | Euglena |
| D. | Red algae | IV. | Polysiphonia |
The poisonous "red tides" result from blooms of
1. diatoms.
2. dinoflagellates.
3. red algae.
4. euglenoids.