Question

Which are correct and incorrect about Frog
(a) Medulla oblongata passes through foramen of Monro and continues into spinal cord
(b) Vasa efferntia develop from testes and are 10 12 in number
(c) Ovaries have no functional connection with kidneys
(d) Frogs are uricotelic

• A. a, b, c correct, d incorrect
• B. a, b correct, c, d incorrect
• C. b, c correct, a, d incorrect
• D. b, c, d correct, a incorrect
• E. c, d correct, a, b incorrect

Answer 1

Answer: (C)

b, c correct, a, d incorrect

• The male reproductive system includes the following organs, a pair of testes, Vasa efferentia (10-12 in number) and a urinogenital duct that opens into the cloaca. The cloaca is a chamber which is used to pass the fecal matter, urine as well as sperms to the outside.
  
• An ammonotelic organism excretes nitrogenous waste as soluble ammonia. Most of the aquatic animals including protozoans, crustaceans, platyhelminths, Hence, frogs are ammonotelic.
  
• The medulla oblongata is connected by the pons to the midbrain and is continuous posteriorly with the spinal cord, with which it merges at the opening (foramen magnum) at the base of the skull.
  
• Kidneys - flattened bean shaped organs located at the lower back of the frog, near the spine. They are often a dark color. The kidneys filter wastes from the blood.Female frogs have two ovaries and a pair of oviducts in their reproductive system, located beside the kidneys. Ovaries have no functional connection with the kidneys.
  

So, the correct answer is 'b, c correct, a, d incorrect'.