Match each item in Column I with one in Column II and select your answer from the codes given below:
Column I | Column II | ||
A. | Diatoms | a. | Protein-rich layer of pellicle |
B. | Dinoflagellates | b. | Cell wall embedded with silica |
C. | Euglenoids | c. | Spores with true walls |
D. | Slime moulds | d. | Cellulose plates in the cell wall |
Codes:
A | B | C | D | |
1. | b | a | c | d |
2. | b | d | a | c |
3. | b | c | a | d |
4. | b | a | d | c |
Red tides in the sea are because of
(1) Red dinoflagellates
(2) Geladium
(3) Red Chrysophytes
(4) Red algae
Dinoflagellates- do not possess which feature?
(1) Marine and photosynthetic
(2) Variety in colors
(3) Cell wall with silica
(4) Two flagella
Dinoflagellates can not appear
(1) Black
(2) White
(3) More than one option is correct
(4) Pink