Megasporangium is equivalent to
Options
(a) fruit (b) nucellus (c) ovule (d) embryo sac
Correct Answer:
ovule
Explanation:
Megasporangium is the structure in certain spore bearing plants, in which the megaspore are forming. […]
In which one of the following the genus name, its phylum name and its two characters are not correctly matched, whereas the remaining three are correct
Options
(a) Pila-Mollusca- body segmented, Mouth with […]
In which one of the following, male and female gametophytes do not have free living independent existence for?
Options
(a) Pteris (b) Funaria (c) Polytrichum (d) Cedrus
Correct Answer:
Cedrus
Explanation:
Male and […]
Identify the vertebrate group of animals characterized by crop and gizzard in its digestive system
Options
(a) Osteichthyes (b) Aves (c) Reptilia (d) Amphibia
Correct Answer:
Aves
Explanation:
The digestive tract of Aves has […]
Which one of the following groups of three animals each is correctly matched with their one characteristic morphological feature?
Options
(a) Liver fluke, Sea anemone, Sea cucumber – Bilateral symmetry (b) Centipede, Prawn, Sea […]
Ciliates differ from all other protozoans in
Options
(a) having two types of nuclei (b) using pseudopodia for capturing prey (c) having a contractile vacuole for removing excess water (d) using flagella for locomotion
Which one of the following plants shows a very close relationship with a species of moth, where none of the two can complete its life cycle without the other?
Options
(a) Viola (b) Banana […]
Winged pollen grains are present in
Options
(a) Pinus (b) Mango (c) Cycas (d) Mustard
Correct Answer:
Pinus
Explanation:
In Pinus, winged pollen grains are present. It is extended outer exine on two lateral […]
Which one of the following shows isogamy with non-flagellated gametes?
Options
(a) Sargassum (b) Ectocarpus (c) Ulothrix (d) Spirogyra
Correct Answer:
Spirogyra
Explanation:
In Spirogyra, sexual reproduction occurs through conjugation. Gametes are non-flagellated morphologically […]
Which one of the following living organisms completely lacks a cell wall?
Options
(a) Cyanobacteria (b) Sea- fan (Gorgonia) (c) Saccharomyces (d) Blue- green algae
Correct Answer:
Sea- fan (Gorgonia)
Explanation:
No explanation […]
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