31. Which frog belongs to the family Ranidae?
[A] true frogs
[B] tree frogs
[C] tailed frog
[D] all of the above
Show Answer
Correct Answer: A [true frogs]
Notes:
True frogs belong to the family Ranidae. They are generally medium to large in size, have smooth skin, and have long legs with webbing between the toes.
32. Which pair of animal groups have separate oxygenated and deoxygenated blood in their heart?
[A] Amphibians and reptiles
[B] Birds and Mammals
[C] Reptiles and Birds
[D] Reptiles and Mammals
Show Answer
Correct Answer: B [Birds and Mammals]
Notes:
Birds and Mammals pair of animal groups have separate oxygenated and deoxygenated blood in their heart. In a double circulation system where both the oxygenated and deoxygenated blood maintains separate.
33. Wool is the fiber derived from the fur of animals of the ___ family.
[A] Caprinae
[B] Moschidae
[C] Suidae
[D] Antilocapridae
Show Answer
Correct Answer: A [Caprinae]
Notes:
Wool is the fiber derived from the fur of animals of the Caprinae family (Sheep). The hair of some species of other mammals such as goats, alpaca, and rabbits can also be called wool.
34. Which is the heaviest organ of the human body?
[A] skin
[B] liver
[C] brain
[D] bone
Show Answer
Correct Answer: A [skin]
Notes:
Skin is the heaviest organ of the human body. Its weight is around 4.5 kg.
35. The brainstem consists of which of the following
[A] Tectum and Tegmentum
[B] Hypothalamus and Thalamus
[C] Medulla and Pons
[D] None of the above
Show Answer
Correct Answer: A [Tectum and Tegmentum]
Notes:
The brainstem consists of Tectum and Tegmentum. The midbrain tegmentum is the part of the midbrain that extends from the substantia nigra to the cerebral aqueduct. The tectum is the dorsal side of the midbrain.
36. The auditory nerve carries:
[A] Smell information
[B] Taste information
[C] Balance information
[D] Sound information
Show Answer
Correct Answer: D [Sound information]
Notes:
The auditory nerve carries Sound information. The acoustic nerve is a sensory nerve essential for hearing. It is also called the cochlear nerve.
37. What is a joint?
[A] A hinge
[B] A ball and socket
[C] The place where two bones are joined
[D] The place where tendons are fastened together
Show Answer
Correct Answer: C [The place where two bones are joined]
Notes:
The place where bones meet is called a joint.
There are two basic types of joints:
1. Movable joints, such as the elbow, knee, and shoulder joints, allow varying degrees of motion.
2. Fixed joints do not allow any movement of bones. The bones of the skull, except the jawbones, join in stable joints.
38. Which of the following are also called natural killer cells?
[A] Monocytes
[B] Thrombocytes
[C] Lymphocytes
[D] Neutrophils
Show Answer
Correct Answer: C [Lymphocytes]
Notes:
Lymphocytes are also called natural killer cells and play a vital role in producing antibodies. Lymphocytes are of two types – B lymphocytes and T lymphocytes.
39. Which of the following is an incorrect description of the human kidney?
[A] Blood enters the kidneys through renal veins.
[B] The kidneys are located on either side of the backbone.
[C] The waste products from the kidneys leave through the ureters
[D] None of these
Show Answer
Correct Answer: A [Blood enters the kidneys through renal veins.]
Notes:
Blood flows into your kidneys through the renal artery and exits through the renal vein.
40. Which of the following is called the end part of the oviduct?
[A] isthmus
[B] ampulla
[C] ostium
[D] thalamus
Show Answer
Correct Answer: A [isthmus]
Notes:
Isthmus is called the end part of the oviduct. It is a narrow strip of land that connects two larger landmasses and separates two bodies of water.
