Page 48 - Fizzy Science Corner
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Zoology











               1. Which of the following organism is iteroparous ?
               (A) Pacific salmon fish
               (B) Virus
               (C) Bacteria
               (D) Humans
               Ans : (D)

               2. A micromutation is—
               (A) Polyploidy
               (B) Addition of chromosome
               (C) Deletion of chromosome
               (D) Change in gene frequency
               Ans : (D)

               3. The limited period of sexual receptivity that occurs around the time of ovulation in all female mammals
               except humans is called—
               (A) Menstruation
               (B) Luteinization
               (C) Oogenesis
               (D) Estrus
               Ans : (D)

               4. The rate and force of the heart-beat, and the secretion of digestive glands are controlled by—
               (A) Central nervous system
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