Owls are nocturnal animals. They are active at night and hunt small animals for food. Owls have large eyes and can see well at night. This is due to:
(a) Cones and Rhodopsin
(b) Rods and Iodopsin
(c) Rods and Rhodopsin
(d) Cones and Iodopsin
(c) Rods and Rhodopsin
Explanation: Owls have many rods that work in dim light. Rods contain rhodopsin, which helps detect light in darkness.
More ICSE Easy level questions
The structure that lies at the junction of the choroid and the iris and is itself a part of the choroid is called: (a) Ciliary body (b) Suspensory ligament (c) Pupil (d) Lens
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Which ear ossicle transports sound from the tympanum to the inner ear? (a) Stapes (b) Malleus (c) Incus (d) Cochlea
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Which parts of the ear are responsible for: (a) Static equilibrium? (b) Dynamic equilibrium?
Arrange and rewrite the terms in each group in correct order to be in a logical sequence beginning with the term that is underlined: (a) Snake, Rabbit, Cabbage, Hawk. (b) Xylem, Soil water, Cortical cells, Root hair. (c) Receptor, Response, Effector, Spinal Cord. (d) Fovea, Lens, Cornea, Conjunctiva. (e) Testis, Urethra, Sperm duct, Epididymis.
Given below is the picture of an eagle. Eagles have binocular vision. What is the advantage of such a vision?
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Read the explanations given below and name the structures: (a) The canal through which the testes descend down into the scrotum just before the birth of a male baby. (b) The part of the brain that regulates the peristaltic movement of the alimentary canal. (c) A structure that collects the soundwaves and conducts them through the external auditory canal. (d) The point of attachment of two chromatids of a chromosome. (e) Regulation of the opening and closing of stomata.
