31. Which reptiles is not an example in the order Testudines?
[A] Turtles
[B] Tuataras
[C] Tortoises
[D] Terrapins
Show Answer
Correct Answer: B [Tuataras]
Notes:
Tuataras is an example of order Sphenodontia whereas Turtles, Tortoises, Terrapins are examples of order Testudines.
32. What characteristics do bats and whales share?
[A] mammary glands
[B] placenta
[C] echolocation
[D] all of these
Show Answer
Correct Answer: D [all of these]
Notes:
Bats and whales share mammary glands, placenta, and echolocation features. They both have developed the ability to use echolocation, a biological sonar for hunting.
33. Ruminants belong to which of the following order?
[A] Proboscida
[B] Artiodactyla
[C] Marsupials
[D] Edentata
Show Answer
Correct Answer: B [Artiodactyla]
Notes:
Ruminants belong to Artiodactyla order. Artiodactyla together with whales make up the order Cetartiodactyla. Artiodactyla includes omnivores and herbivores.
34. Why is a dolphin is a mammal?
[A] because it breathes through lungs
[B] because has mammary glands
[C] because it does not lay eggs
[D] All of the above
Show Answer
Correct Answer: D [All of the above]
Notes:
Dolphin is a mammal because it breathes through the lungs and has mammary glands. In addition, it does not lay eggs and gives birth to its own young. Dolphins belong to the Cetaceans class of mammalia.
35. What is the purpose of the rib cage?
[A] protect the stomach
[B] protect the spinal cord
[C] protect the heart and lungs
[D] provide an object to which the lungs can attach
Show Answer
Correct Answer: C [protect the heart and lungs]
Notes:
Ribs perform two functions in the body. They protect the heart and lungs. It controls the movement of air in and out of the lungs. When the ribs move up, the chest cavity expands and air moves into the lungs. When they go down, the air is forced out of the lungs.
36. How many ureters are present?
[A] One
[B] Two
[C] Three
[D] Four
Show Answer
Correct Answer: B [Two]
Notes:
2 ureters are present. One from each kidney. The upper half is located in the abdomen and the lower half is located in the pelvic region.
37. What is the process of regulating body fluids and their composition?
[A] Secretion
[B] Reabsorption
[C] Glomerular Filteration
[D] Osmoregulation
Show Answer
Correct Answer: D [Osmoregulation]
Notes:
Osmoregulation is the process of regulating body fluids and their composition.
38. Which of the following is not pure endocrine gland?
[A] Thyroid gland
[B] Thymus gland
[C] Pancreas
[D] Adrenal
Show Answer
Correct Answer: C [Pancreas]
Notes:
The pancreas and gonads are two glands that are not pure endocrine. The pancreas secretes both hormones and enzymes and acts as both endocrine and exocrine.
39. Which of the following secretes relaxin during pregnancy?
[A] Corpus luteum
[B] Antidiuretic hormone
[C] Prolactin
[D] Adrenaline
Show Answer
Correct Answer: A [Corpus luteum]
Notes:
The Corpus luteum secretes relaxin during pregnancy. The human corpus luteum secretes relaxin, oxytocin, and progesterone.
40. Into how many structural regions is the oviduct divided?
[A] Two
[B] Three
[C] Four
[D] None of these
Show Answer
Correct Answer: B [Three]
Notes:
Into three structural regions is the oviduct divided: ampulla, isthmus, and infundibulum
