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 […]
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 […]
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 […]
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 […]
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 – […]
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 […]
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 […]
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 […]
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 […]
A gymnast is able to balance his body upside down even in the total darkness because of :
Options
(a) Vestibular apparatus (b) Tectorial membrane (c) Organ of corti (d) Cochlea
Correct Answer:
Vestibular […]
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