The conversion of ammonia into nitrites and nitrates is called
Options
(a) ammonification (b) nitrification (c) denitrification (d) all of these
Correct Answer:
nitrification
Explanation:
No explanation available. Be the first to write […]
The essential components of ecosystem, without which ecosystems cannot function, are
Options
(a) consumer organisms (b) secondary consumer organisms (c) sunlight, green plants (d) decomposer organisms
Correct Answer:
sunlight, green plants
Explanation:
No […]
The final stable community in ecological succession is
Options
(a) pioneers (b) sere (c) climax (d) canivores
Correct Answer:
climax
Explanation:
No explanation available. Be the first to write the explanation for this […]
The formula for exponential population growth is
Options
(a) dN/dt = rN (b) dt/dN = rN (c) dN/rN = dt (d) rN/dN = dt
Correct Answer:
dN/dt = rN
Explanation:
No explanation available. […]
The limiting factor in nitrification of soil in
Options
(a) soil nature(pH) (b) light (c) temperature (d) air
Correct Answer:
soil nature(pH)
Explanation:
No explanation available. Be the first to write the explanation […]
Hormone produced against allergic reaction is
Options
(a) glucocorticoid (b) epinephrine (c) mineralocorticoid (d) norephinephrine
Correct Answer:
glucocorticoid
Explanation:
Glucocorticoids have anti inflammatory properties and act via chemical messengesrs like interlukins, chemokines,etc., to […]
How insulin lowers the blood sugar?
Options
(a) by increasing muscles glycogen formation (b) by increasing blood pressure (c) by increasing heart beat (d) none of the above
Correct Answer:
by increasing muscles […]
Human eye is sensitive to wavelength in the range of
Options
(a) 300-900 nanometer (b) 380-760 nanometer (c) 790-800 nanometer (d) 300-360 nanometer
Correct Answer:
380-760 nanometer
Explanation:
400 to 700 nm range […]
In homeotherms, the brain centre, which regulates body temperature, is situated in
Options
(a) hypothalamus (b) cerebral lobe (c) cerebellum (d) medulla oblongata
Correct Answer:
hypothalamus
Explanation:
The hypothalamus plays important role in controlling […]
Insulin and glucagon are transported to target organ by
Options
(a) lymph (b) blood (c) pancreatic duct (d) cystic duct
Correct Answer:
blood
Explanation:
Both insulin and glucagon (secreted from pancreas) are associated with […]
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