Q1. Which of the following organ systems in frogs is involved in osmoregulation?A. Nervous systemB. Endocrine systemC. Excretory systemD. Respiratory system
Q2. Which organ system in frogs is responsible for maintaining water balance and excreting nitrogenous wastes?A. Respiratory systemB. Circulatory systemC. Excretory systemD. Digestive system
Q3. Which of the following statements about the frog’s digestive system is incorrect?A. Frogs have a short alimentary canal suited for carnivorous feeding.B. The stomach opens directly into the cloaca without an intestine.C. The pancreas secretes digestive enzymes.D. The liver secretes bile, which aids in digestion.
Q4. Which blood pigment is responsible for oxygen transport in frogs?A. ChlorocruorinB. HaemocyaninC. HemoglobinD. Myoglobin
Q5. Which of the following statements about frog circulation is incorrect?A. Frogs have a three-chambered heart.B. The heart of a frog has two atria and one ventricle.C. Frogs have a single circulatory system like fish.D. Frogs have a closed circulatory system.
Q6. Which of the following organs in a frog is responsible for bile secretion?A. StomachB. Gall bladderC. LiverD. Pancreas
Q7. Which structure in a male frog helps in sound production?A. CloacaB. Vocal sacsC. TympanumD. Larynx
Q8. Which of the following statements about frog respiration is incorrect?A. Frogs respire through lungs on land.B. Buccal respiration occurs when frogs are inactive.C. Frogs continue to use gills throughout their life.D. Cutaneous respiration allows gas exchange through the skin.
Q9. Which part of the frog’s brain controls voluntary actions?A. Medulla oblongataB. CerebellumC. CerebrumD. Optic lobes
Q10. Which gland in frogs is responsible for regulating metamorphosis?A. Thyroid glandB. Pituitary glandC. Pancreatic isletsD. Adrenal glands