Q. No.Which of the following are homosporous pteridophytes?
I.
Selaginella
II.
Lycopodium
III.
Salvinia
IV.
Equisetum
1. I and IV only
2. II and III only
3. II and IV only
4. III and IV only
2. II and III only
3. II and IV only
4. III and IV only
Pick the correct group consisting of all genera exhibiting homospory.
| 1. | Lycopodium, Psilotum, Selaginella, Equisetum |
| 2. | Equisetum, Pteris, Salvinia, Psilotum |
| 3. | Salvinia, Pteris, Lycopodium, Selaginella |
| 4. | Equisetum, Psilotum, Lycopodium, Pteris |
In the given diagrams, some of the algae have been labelled as A, B, C, D and E. Choose the correct option to identify these algae.
| A | B | C | D | E | |
| 1. | Dictyota | Polysiphonia | Porphyra | Fucus | Laminaria |
| 2. | Porphyra | Dictyota | Laminaria | Fucus | Polyspiphonia |
| 3. | Dictyota | Polysiphonia | Porphyra | Laminaria | Fucus |
| 4. | Fucus | Porphyra | Dictyota | Polysiphonia | Laminaria |
Classical Taxonomy is based on
| 1. | morphological traits |
| 2. | habitat of organisms |
| 3. | similarities and dissimilarities of behaviour |
| 4. | phylogeny |
Read the following statements reagrding bryophytes and choose the incorrect option.
(1) Gametophytic phase is dominant in life cycle
(2) Fertilisation takes place in presence of water
(3) Zygote undergoes meiosis to produce sporophyte
(4) Sporophyte isphysiologically dependent on gametophyte
Gelatin, an important raw material for preparation of photographic emulsion is a by product of
(1) chicken
(2) forest
(3) cattle
(4) fish
Phylogenetic system of classification includes
| 1. | evolutionary trends only |
| 2. | genetic trends only |
| 3. | evolutionary trend as well as morphology |
| 4. | behavioural trends in environment |
Match items in Column I with those in Column II.
|
|
Column I |
|
Column II |
|
A. |
Peritrichous flagella |
1. |
Ginkgo |
|
B. |
Living fossil |
2. |
Macrocystis |
|
C. |
Rhizophore |
3. |
E.coli |
|
D. |
Smallest flowering plant |
4. |
Selaginella |
|
E. |
Largest perennial alga |
5. |
Wolffia |
|
|
A |
B |
C |
D |
E |
|
(1) |
3 |
1 |
4 |
5 |
2 |
|
(2) |
2 |
3 |
4 |
1 |
5 |
|
(3) |
4 |
2 |
1 |
5 |
3 |
|
(4) |
2 |
4 |
3 |
5 |
1 |
Cycas is classified as a gymnosperms due to its
| 1. | motile sperms | 2. | fruit formation |
| 3. | naked ovule | 4. | pycnoxylic wood |
Elater mechanism for seed dispersal is exhibited by
1. Riccia
2. Marchantia
3. Dryopteris
4. Funaria
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