The scutellum observed in a grain of Wheat or maize is comparable to which part of the seed in other monocotyledons?
Cotyledon
Endosperm
Aleurone layer
Aleurone layer
The correct sequence of plants in a hydrosere is
Oak → Lantana → scirpus→Pistia→Hydrilla→Volvox
Volvox → Hydrilla → Pistia → Scirpus → Lantana → Oak
Pista → Volvox → Scirpus → Hydrilla → Oak → Lantana
Pista → Volvox → Scirpus → Hydrilla → Oak → Lantana
Which one of the following is a vascular cryptogam?
Equisetum
Ginkgo
Marchantia
Marchantia
Which one of the following is considered important in the development of seed habit?
Dependent sporophyte
Heterospory
Haplontic life cycle
Haplontic life cycle
B.
Heterospory
Heterospory is the production of spores of two different sizes and of two different sizes and of two different development patterns. Heterospory is an expression sex determining spores of the plant. It is the most important evolutionary development in the vascular plants because it has ultimately lead to seed development, eg, Selaginella, Salvinia,Azolla, etc.
Examine the figure A, B, C, and D. In which one of the four options, all the items A, B, C and D are correct.
A |
B |
C |
D |
Chara |
Marchantia |
Fucus |
Pinus |
A |
B |
C |
D |
Equisetum |
Ginkgo |
Selaginella |
Lycopodium |
A |
B |
C |
D |
Selaginella |
Equisetum |
Salvinia |
Ginkgo |
A |
B |
C |
D |
Selaginella |
Equisetum |
Salvinia |
Ginkgo |