Four sepals arranged in two whorls is characteristic of family
Options
(a) Solanaceae (b) Fabaceae (c) Brassicaceae (d) Liliaceae
Correct Answer:
Brassicaceae
Explanation:
Sepals 4, polysepalous, arranged in two whorls outer of antero-posterior […]
The toxic effect of carbon monoxide is due to its greater affinity for haemoglobin as compared to oxygen approximately by
Options
(a) 2 times (b) 20 times (c) 250 times (d) 1000 times
The living beings are made up of cells. This was stated by
Options
(a) Lamarck (b) Hugo de Vries (c) Van Helmont (d) Schleidan and Schwann
Correct Answer:
Schleidan and Schwann
Explanation:
No […]
The maximum wavelength of radiations emitted at 900K is 4 µm. What will be the maximum wavelength of radiations emitted at 1200 K?
Options
(a) 3 µm (b) 0.3 µm (c) 1 µm (d) […]
When a mass M is attached to a spring of force constant K, then the spring stretches by l. If the mass oscillates with amplitude l, what will be maximum potential energy stored in the […]
The embryo in sunflower has
Options
(a) no cotyledon (b) two cotyledons (c) one cotyledon (d) many cotyledons
Correct Answer:
two cotyledons
Explanation:
No explanation available. Be the first to write the explanation […]
The feedback control mechanism is related with
Options
(a) bile secretion (b) hormonal secretion (c) HCL secretion (d) Herring Breurer reflex
Correct Answer:
hormonal secretion
Explanation:
No explanation available. Be the first to […]
The term ecosystem was first coined by
Options
(a) Odum (b) Reither (c) Tansley (d) both (a) & (b)
Correct Answer:
Tansley
Explanation:
No explanation available. Be the first to write the explanation […]
Which of the following is the most stable ecosystem?
Options
(a) ocean (b) forest (c) desert (d) mountain
Correct Answer:
ocean
Explanation:
No explanation available. Be the first to write the explanation for […]
Mycorrhiza acts as
Options
(a) Mechanical tissue (b) Root hair in adverse conditions (c) Modified root (d) Organ for vegetative propagation
Correct Answer:
Root hair in adverse conditions
Explanation:
A hairlike outgrowth of […]
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