In Pinus,
I. | The stem is branched |
II. | Roots have fungal association in the form of mycorrhiza |
III. | The male and female strobili are borne on different trees |
1. | Only I is correct |
2. | Only II is correct |
3. | Only I and II are correct |
4. | I, II and III are correct |
Select the mismatch
(1) |
Pinus |
Dioecious |
(2) |
Cycas |
Dioecious |
(3) |
Salvinia |
Heterosporous |
(4) |
Equisetum |
Homosporous |
Conifers are adapted to tolerate extreme environmental conditions because of
1. | broad hardy leaves | 2. | superficial stomata |
3. | thick cuticle | 4. | the presence of vessels |
Select the correct statement.
(1) Salvinia, Ginkgo and Pinus all are gymnosperms
(2) Sequoia is one of the tallest trees
(3) The leaves of gymnosperms are not well adapted to extremes of climate
(4) Gymnosperms are both homosporous and heterosporous
Besides paddy fields, cyanobacteria are also found inside vegetative part of
1. | Pinus | 2. | Cycas |
3. | Equisetum | 4. | Psilotum |