Question
Industrial melanism was observed in:
Industrial melanism was observed in: (a) Mice (b) Peppered Moth (c) House Flies (d) Crow
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Birth rate is the number of live births per thousand persons in:
Birth rate is the number of live births per thousand persons in: (a) 1 year (b) 2 years (c) 10 years (d)…
Question
Assertion: The sympathetic nervous system prepares the body for violent action. Reason: The sympathetic nervous system accelerates the heartbeat.
Assertion: The sympathetic nervous system prepares the body for violent action. Reason: The sympathetic nervous system accelerates the heartbeat. (a) Both Assertion…
Question
A male gorilla has 48 chromosomes in each body cell. How many chromosomes will be present in each of its sperms?
A male gorilla has 48 chromosomes in each body cell. How many chromosomes will be present in each of its sperms? (a)…
Question
Osmosis involves the movement of water molecules through a:
Osmosis involves the movement of water molecules through a: (a) Freely permeable membrane (b) Cell wall (c) Selectively permeable membrane (d) Impermeable…
Question
Which of the following sets shows examples of genetic disorders?
Which of the following sets shows examples of genetic disorders? P. Colour blindness and Malaria Q. Albinism and Cholera R. Haemophilia and…
Question
Which part of the eye adjusts the focal length of the eye lens?
Which part of the eye adjusts the focal length of the eye lens? (a) Cornea (b) Iris (c) Ciliary muscles (d) Sclera
Question
The immediate steps to be taken when a person suffers a heart attack are:
The immediate steps to be taken when a person suffers a heart attack are: P. Loosen the clothes Q. Make the person…
Question
Which ear ossicle transports sound from the tympanum to the inner ear?
Which ear ossicle transports sound from the tympanum to the inner ear? (a) Stapes (b) Malleus (c) Incus (d) Cochlea
Question
A zygote which has an Y chromosome inherited from the father will develop into:
A zygote which has an Y chromosome inherited from the father will develop into: (a) It will depend on the chromosome inherited…