class 9 science chapter 6 mcq

26 Making of the nest, is the art acquired by the birds from which of the following? 1. instinct 2. imprinting 3. conditioning 4. imitation

25 Pacinian receptors are for 1. touch 2. pressure 3. temperature 4. all

24 Which is the largest organ of the human body? 1. heart 2. lungs 3. intestine 4. skin

23 Cutaneous receptors are responsible for 1. sense of touch 2. sense of taste 3. sense of vision 4. sense of smell