Tiêu đề 7. STRUCTURAL ORGANIZATION IN ANIMALS (ANIMAL TISSUE).pdf ✅

(1) Both (A) & (R) are true and the (R) is the correct explanation of the (A) (2) Both (A) & (R) are true but the (R) is not the correct explanation of the (A) (3) (A) is true but (R) is false (4) Both (A) and (R) are false 9. Assertion (A): Frog shows phenomenon of hibernation Reason (R): Frogs are poikilothermic animals (1) Both (A) & (R) are true and the (R) is the correct explanation of the (A) (2) Both (A) & (R) are true but the (R) is not the correct explanation of the (A) (3) (A) is true but (R) is false (4) Both (A) and (R) are false 10. Assertion (A): Tendons and ligaments are dense regular connective tissue. Reason (R): Dense regular connective tissue contains collagen fibres and fibroblast cells. (1) Both (A) & (R) are true and the (R) is the correct explanation of the (A) (2) Both (A) & (R) are true but the (R) is not the correct explanation of the (A) (3) (A) is true but (R) is false (4) Both (A) and (R) are false 11. Assertion (A): Development in cockroach is also termed as paurometabolous development. Reason (R): In cockroach nymphal stage directly changes into adult without moulting. (1) Both (A) & (R) are true and the (R) is the correct explanation of the (A) (2) Both (A) & (R) are true but the (R) is not the correct explanation of the (A) (3) (A) is true but (R) is false (4) Both (A) and (R) are false 12. Assertion (A): Rana tigrina is coldblooded or poikilotherm. Reason (R): Its body temperature varies with the temperature of the environment. In the light of the above statements choose the correct answer from the options given below: (1) Both (A) & (R) are true and the (R) is the correct explanation of the (A) (2) Both (A) & (R) are true but the (R) is not the correct explanation of the (A) (3) (A) is true but (R) is false (4) Both (A) and (R) are false 13. Assertion (A): Frogs help maintain ecological balance. Reason (R): Frogs serve as an important link in the food chain and food web in the ecosystem. In the light of the above statements choose the correct answer from the options given below: (1) Both (A) & (R) are true and the (R) is the correct explanation of the (A) (2) Both (A) & (R) are true but the (R) is not the correct explanation of the (A) (3) (A) is true but (R) is false (4) Both (A) and (R) are false 14. Assertion (A): The alimentary canal in frogs is short. Reason (R): Frogs are carnivores. In the light of the above statements choose the correct answer from the options given below: (1) Both (A) & (R) are true and the (R) is the correct explanation of the (A) (2) Both (A) & (R) are true but the (R) is not the correct explanation of the (A) (3) (A) is true but (R) is false (4) Both (A) and (R) are false 15. Assertion (A): Frogs have the capability to change the colour and resemble their surroundings. Reason (R): They are poikilothermous animals. (1) Both (A) & (R) are true and the (R) is the correct explanation of the (A) (2) Both (A) & (R) are true but the (R) is not the correct explanation of the (A) (3) (A) is true but (R) is false (4) Both (A) and (R) are false
16. Assertion (A): The skin of a frog is always kept moist and has a mucus Reason (R): Frogs respire through the skin as well. In the light of the above statements choose the correct an- swer from the options given below: (1) Both (A) & (R) are true and the (R) is the correct explanation of the (A) (2) Both (A) & (R) are true but the (R) is not the correct explanation of the (A) (3) (A) is true but (R) is false (4) Both (A) and (R) are false