31. 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.
32. Breathing, heartbeat, sleep, wakefulness, and motor learning are controlled by which part of the brain?
[A] Forebrain
[B] Midbrain
[C] Hindbrain
[D] All of the above
Show Answer
Correct Answer: C [Hindbrain]
Notes:
Breathing, heartbeat, sleep, wakefulness, and motor learning are controlled by Hindbrain. The hindbrain is composed of Cerebellum, Medulla, and Pons.
33. Where is the organ of Corti present?
[A] scala vestibuli
[B] scala tympani
[C] scala media
[D] none of the above
Show Answer
Correct Answer: C [scala media]
Notes:
The scala media is an endolymph-filled cavity inside the cochlea, located between the tympanic duct and the vestibular duct.
34. What is the difference between compact bone and spongy bone?
[A] They have different bone marrow
[B] They are made of different materials
[C] They have different sizes of bone cells
[D] They have different arrangement of bone cells
Show Answer
Correct Answer: D [They have different arrangement of bone cells]
Notes:
The cells in the compact bone are packed closely together. This makes the bone very strong. For this reason, compact bone is located outside the bones. The spongy bone cells are dilated, which allows blood-filled canals to run through the spongy bone. The spongy bone is found at the end of long bones.
35. Into how many parts is the Urinary bladder divided?
[A] One
[B] Two
[C] Three
[D] Four
Show Answer
Correct Answer: D [Four]
Notes:
The Urinary bladder is divided into 4 parts. They are abroad corpuscle, a body, a vertex, a neck.
36. Which of the following act as both endocrine as well as exocrine gland?
[A] Pancreas
[B] Liver
[C] Intestine
[D] Stomach
Show Answer
Correct Answer: A [Pancreas]
Notes:
The pancreas is a gland that is both endocrines as well as exocrine; It is because it secretes both hormones as well as enzymes.
37. Which gland is helpful in increasing blood calcium levels?
[A] Thymus gland
[B] Thyroid gland
[C] Pineal gland
[D] Parathyroid gland
Show Answer
Correct Answer: D [Parathyroid gland]
Notes:
The parathyroid gland is helpful in increasing blood calcium levels. These glands consist of four small glands that are located behind the thyroid in the neck.
38. Which of the following are not included in the male reproductive system?
[A] Testicles
[B] Oviducts
[C] Scrotum
[D] Vas deferens
Show Answer
Correct Answer: B [Oviducts]
Notes:
Oviducts are a part of the female reproductive system. It is also called the fallopian tube. It is the site of fertilization that connects the ovary to the uterus.
39. Chickenpox is a highly contagious disease caused by the __
[A] Pasteurella pestis
[B] Bacillus anthracis
[C] Bordetella pertussis
[D] Varicella zoster
Show Answer
Correct Answer: D [Varicella zoster ]
Notes:
Chickenpox is a highly contagious disease caused by the varicella zoster virus.
40. Which word is common in the botanical names of trees like Ashoka, Tamarind or Coral?
[A] Terminalia
[B] Indica
[C] Salix
[D] Acacia
Show Answer
Correct Answer: B [Indica]
Notes:
Tamarind tree (Tamarindus indica), Ashoka tree (Saraca Indica), Indian Coral tree (Erythrina Indica) have ‘Indica’ common in their botanical names. In biology/taxonomy, if a species originates in India, its scientific name sometimes includes “Indica”.
