Cycas and Adiantum resemble each other in having:
Options
(a) Seeds (b) Motile Sperms (c) Cambium (d) Vessels
Correct Answer:
Motile Sperms
Explanation:
Cycas (a gymnosperm) and Adiantum known as Maiden hair fern is […]
Compared to a bull a bullock is docile because of
Options
(a) higher levels of cortisone (b) lower levels of blood testosterone (c) lower levels of adrenaline/ noradrenaline in its blood (d) higher levels […]
Spore dissemination in some liverworts is aided by
Options
(a) indusium (b) calyptra (c) peristome teeth (d) elaters
Correct Answer:
elaters
Explanation:
Elater is an elongated, spirally thickened, water-attracting cell in the capsule of […]
In angiosperms, functional megaspore develops into
Options
(a) embryo sac (b) ovule (c) endosperm (d) pollen sac
Correct Answer:
embryo sac
Explanation:
During megagametogenesis functional megaspore (mostly chalazal) gives rise to embryo sac. This […]
Which one of the following is a vascular cryptogam?
Options
(a) Ginkgo (b) Marchantia (c) Cedrus (d) Equisetum
Correct Answer:
Equisetum
Explanation:
Equisetum is a vascular cryptogams. Equisetum is the only living genus in […]
Which one of the following has haplontic life cycle?
Options
(a) Polytrichum (b) Ustilago (c) Wheat (d) Funaria
Correct Answer:
Ustilago
Explanation:
Ustilago has a haplontic life cycle. This is a simplest and most […]
One of the representatives of phylum Arthropoda is :
Options
(a) Silverfish (b) Pufferfish (c) Flying fish (d) Cuttlefish
Correct Answer:
Silverfish
Explanation:
Representive of Phylum Arthropoda is silverfish. Arthropoda is the largest phylum […]
Which one of the following groups of animals is bilaterally symmetrical and triploblastic?
Options
(a) Aschelminthes (round worms) (b) Ctenophores (c) Sponges (d) Coelenterates (Cnidarians)
Correct Answer:
Aschelminthes (round worms)
Explanation:
Aschelminthes is […]
Isogamous condition with non-flagellated gametes is found in :
Options
(a) Spirogyra (b) Volvox (c) Fucus (d) Chlamydomonas
Correct Answer:
Spirogyra
Explanation:
In Spirogyra, sexual reproduction occurs through conjugation. Gametes are non-flagellated morphologically similar. […]
Which one of the following kinds of animals are triploblastic?
Options
(a) Flat worms (b) Sponges (c) Ctenophores (d) Corals
Correct Answer:
Flat worms
Explanation:
Triploblastic condition can be seen in flat worms. […]
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