- 1(current)
Q. No.Which one of the following is a matching pair of certain organism(s) and the kind of
association?
1. Shark and sucker fish - predation
2. Algae and fungi in lichens - mutualism
3. Orchids growing on trees - parasitism
4. Cuscuta (dodder) growing in other flowering plants - epiphytism
Match column I with column II and select the correct option from the codes given below.
| Column I | Column II |
| A. Commensalism | (i) One inhibited other unaffected |
| B. Parasitism | (ii) One benefited other unaffected |
| C. Mutualism | (iii) Both are benefitted |
| D. Amensalism | (iv) One benefitted other harmed |
| A | B | C | D | |
| 1. | (iv) | (ii) | (iii) | (i) |
| 2. | (iii) | (iv) | (ii) | (i) |
| 3. | (ii) | (iv) | (iii) | (i) |
| 4. | (ii) | (iv) | (i) | (iii) |
Match the items in Column-I with those in Column-II:
| Column-I | Column-II | ||
| (a) | Herbivores-Plants | (i) | Commensalism |
| (b) | Mycorrhiza-Plants | (ii) | Mutualism |
| (c) | Sheep-Cattle | (iii) | Predation |
| (d) | Orchid-Tree | (iv) | Competition |
Select the correct option from the following:
| Options: | (a) | (b) | (c) | (d) |
| 1. | (iv) | (ii) | (i) | (iii) |
| 2. | (iii) | (ii) | (iv) | (i) |
| 3. | (ii) | (i) | (iii) | (iv) |
| 4. | (i) | (iii) | (iv) | (ii) |
Match the following and choose the correct combination from the options given below:
|
|
Column I (Interaction) |
|
Column II (Examples) |
|
I. |
Mutualism |
i) |
Trichoderma and Penicillium |
|
II. |
Commensalism |
ii) |
Balanophora, Orobanche |
|
III. |
Parasitism |
iii) |
Orchids and Ferns |
|
IV. |
Predation |
iv) |
Lichen and Mycorrhiza |
|
V. |
Amensalism |
v) |
Nepenthes and Diaonaea |
|
|
I |
II |
III |
IV |
V |
|
1. |
i |
ii |
iii |
iv |
v |
|
2. |
ii |
iii |
iv |
v |
i |
|
3. |
iii |
iv |
v |
i |
ii |
|
4. |
iv |
iii |
ii |
v |
i |
Match the following and choose the correct combination from the options given below.
|
Column I |
Column II |
||
|
A. |
Mutalism |
1. |
Lion and deer |
|
B. |
Commensalism |
2. |
Round worm and man |
|
C. |
Parasitism |
3. |
Birds compete with squirrels for nuts |
|
D. |
Competition |
4. |
Sea anemone on hermit crab |
|
E. |
Predation |
5. |
Barnacles attached to Whales. |
Dispersal
1. A- 4, B-5, C-2, D –3, E-1
2. A- 3, B-1, C-4, D – 2, E-5
3. A- 2, B-3, C-1, D – 5, E-4
4. A- 5, B-4, C-2, D – 3, E-1
Reason(R): They depend on cattle's movement by which soil insects get stirred up & flushed out and egrets get their food (soil insects) easily.
Choices for Assertions and reasons:
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
- 1(current)
Q. No.
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