Match the organisms in Column I with habitats in Column II.
Column I | Column II | ||
(a) | Halophiles | (i) | Hot springs |
(b) | Thermoacidophiles | (ii) | Aquatic environment |
(c) | Methanogens | (iii) | Guts of ruminants |
(d) | Cyanobacteria | (iv) | Salty areas |
Select the correct answer from the options given below:
Options: | (a) | (b) | (c) | (d) |
1. | (iv) | (i) | (iii) | (ii) |
2. | (i) | (ii) | (iii) | (iv) |
3. | (iii) | (iv) | (i) | (i) |
4. | (ii) | (iv) | (iii) | (i) |
Match the Column-I with Column-II
Column-I |
Column-II |
||
(a) |
Saprophyte |
(i) |
Symbiotic association of fungi with plant roots |
(b) |
Parasite |
(ii) |
Decomposition of dead organic materials |
(c) |
Lichens |
(iii) |
Living on living plants or animals |
(d) |
Mycorrhiza |
(iv) |
Symbiotic association of algae and fungi |
Choose the correct answer from the options given below:
Options: | (a) | (b) | (c) | (d) |
1. | (ii) | (iii) | (iv) | (i) |
2. | (i) | (ii) | (iii) | (iv) |
3. | (iii) | (ii) | (i) | (iv) |
4. | (ii) | (i) | (iii) | (iv) |
Consider the following statement with respect to Mycoplasma
a. They lack cell wall.
b. They are the largest living cell.
c. They can survive without oxygen
d. They are pathogenic to animals only.
The correct statements are
1. b & d
2. b & c
3. a & c
4. a & d
I: | In diatoms, the cell walls form two thin overlapping shells which fit together as in a soap box |
II: | The walls are embedded with silica and thus are indestructible |
III: | The fossilized diatoms are called diatomaceous earth |
IV: | Diatoms are not the main producers in the oceans |
V: | Diatomaceous earth is used in polishing, filtration of oil and syrups |
Column -I | Column-II |
A. Plasmodium | (i) Diatoms |
B. Mixotrophic nutrition | (ii) Euglenoids |
C. Red tide | (iii) Dinoflagellates |
D. Oceanic chief producers | (iv) Slime moulds |