Q. No.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
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.
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
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 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) |
Choose the correct match
Bladderwert, sundew, venus flytrap:
1. Nepanthese, Dionea, Drosera
2. Nepanthese, Utricularia, Vanda
3. Utricularia, Drosera, Dionea
4. Dionea, Trapa, Vanda
| (i) | Success of mammals on earth is mainly due to their ability to maintain a constant body temperature |
| (ii) | Migration is restricted to animals only. In plants, even the propagules (spores and seeds) cannot migrate |
| (iii) | Diapause is a stage of suspended development in many zooplanktons |
| (iv) | Most of the animals can maintain internal homeostasis |
| (v) | In conformers, the body temperature changes with the ambient temperature but the osmotic concentration of the body fluids does not change with that of ambient water osmotic concentration |
1. (ii), (iv) and (v)
2. (i) and (iii)
3. (i), (ii) and (iii)
4. (ii) and (iii)
| 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 |
| (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)
Competition occurs when closely related species compete for the same resources that are limiting.
In this statement two concepts are emphasized, one is closely related species and the other the resources are limiting.
1. first concept is entirely wrong while the second concept is entirely correct.
2. First concept is right while the second is partially correct
3. Both are not entirely correct
4. Both are entirely correct.
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