What causes a green plant exposed to the light on only one side, to bend toward the source of light as it grows ? Options (a) Green plants seek light because they are phototropic (b) […]
Typical growth curve in plants is : Options (a) Linear (b) Stair-steps shaped (c) Parabolic (d) Sigmoid Correct Answer: Sigmoid Explanation: Sigmoid growth curve maintains equilibrium with carrying capacity, it forms asymptote stage in plants.
Which one of the following statements is wrong? Options (a) Agar – agar is obtained from Gelidium and Gracilaria (b) Chlorella and Spirulina are used as space food (c) Mannitol is stored food in Rhodophyceae […]
Which of the following represents the correct combination without any exception?Characteristics – Class Options (a) Mouth ventral, gills withoutoperculum; skin with placoidscales; persistent notochord – Chondrichthyes (b) Sucking and circular mouth;jaws absent, integument without scales;paired […]
Which of the following animals is not viviparous? Options (a) Elephant (b) Platypus (c) Whale (d) Flying fox (Bat) Correct Answer: Platypus Explanation: Platypus is oviparous (egg laying animal). It belongs to class – mammalia.
The terga, sterna and pleura of cockroach body are joined by : Options (a) Muscular tissue (b) Arthrodial membrane (c) Cartilage (d) Cementing glue Correct Answer: Arthrodial membrane Explanation: Between the various sclerite, a flexible […]
Read the following five statements(A to E) and select the option with all correct statements : (A)Mosses and Lichens are the first organisms to colonise a bare rock (B)Selaginella is ahomosporous pteridophyte (C)Coralloidroots in Cycas […]
Male gemetes are flagellated in : Options (a) Anabaena (b) Ectocarpus (c) Spirogyra (d) Polysiphonia Correct Answer: Ectocarpus Explanation: No explanation available. Be the first to write the explanation for this question by commenting below.
The structures that are formed by stacking of organized flattened membranous sacs in the chloroplasts are: Options (a) Grana (b) Stroma lamellae (c) Stroma (d) Cristae Correct Answer: Grana Explanation: In chloroplast which are green […]
Which of the following regions of the brain is incorrectly paired with its function? Options (a) Cerebellum –language comprehension (b) Corpus callosum – communication between the left and right cerebral cortices (c) Cerebrum – calculation […]
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