Q. No.| Assertion (A): | Among red, green and brown algae, the red algae are found in the deepest ocean. |
| Reason (R): | Red algae possess phycobilins, which can absorb the blue and green light that penetrates the deepest water. |
| 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. | Both (A) and (R) are false |
| Assertion: | The triangular age pyramid is a graphic representation of a young or growing population. |
| Reason: | An age pyramid is a graphic representation of proportion of various age group of population. |
| 1. | Both assertion and reason are true and the reason is the correct explanation of the assertion |
| 2. | Both assertion and reason are true but the reason is not the correct explanation of the assertion |
| 3. | Assertion is true but reason is false |
| 4. | Both assertion and reason are false |
| Assertion (A): | The Mediterranean orchid Ophyrus employs 'sexual deceit' to get pollinated by some male bees. |
| Reason (R): | Plant-animal interactions never involve co-evolution. |
| 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. | Both (A) and (R) are false |
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) |
Choose the correct match
Bladderwert, sundew, venus flytrap:
1. Nepanthese, Dionea, Drosera
2. Nepanthese, Utricularia, Vanda
3. Utricularia, Drosera, Dionea
4. Dionea, Trapa, Vanda
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
| (i) | Lactic acid bacteria produce acids that coagulate and partially digest the milk protein during curd making |
| (ii) | Curd is less nutritious than milk |
| (iii) | Cheese is partially degraded concentration of milk fat and casein |
| (iv) | Large holed swiss cheese is ripened by fungi propionibacterium sharmanii |
| (v) | Probiotics are live microbial food supplements |
Which of the above statements are correct?
1. (ii), (iii) and (iv)
2. (i), (ii) and (iii)
3. (ii) and (iv)
4. (i), (iii) and (v)
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