31. Which of the following forms the boundary between the middle and inner ear?
[A] incus
[B] oval window
[C] pinnae
[D] tympanic membrane
Show Answer
Correct Answer: B [oval window]
Notes:
Oval window, also known as Fenestra ovalis. It is a connective tissue membrane located at the end of the middle ear and the beginning of the inner ear.
32. A human communication system consists of a network of:
[A] arteries
[B] veins
[C] capillaries
[D] All of the above
Show Answer
Correct Answer: D [All of the above]
Notes:
The human circulatory system consists of a network of arteries, veins and capillaries, through which the heart pumps blood.
33. B-cells and T-cells are two types of cells, which of the following are involved?
[A] Innate Immunity
[B] Active immunity
[C] Passive immunity
[D] Acquired immunity
Show Answer
Correct Answer: D [Acquired immunity]
Notes:
Acquired immunity is a type of immunity that develops when a person’s immune system reacts to a foreign substance or microorganism, or that occurs after a person receives antibodies from another source.
34. 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.
35. Urine is formed in the nephron and which of the following steps are involved?
[A] Glomerular Filtration
[B] Tubular Reabsorption
[C] Secretion
[D] All of the above
Show Answer
Correct Answer: D [All of the above]
Notes:
Urine is formed in the nephron and Glomerular Filtration, Tubular Reabsorption, and Secretion steps are involved in it.
36. Which of the following is used to absorb fluids and salts remaining after the completion of intestinal digestion and absorption and to mix its contents with a lubricating substance, mucus?
[A] Cecum
[B] Colon
[C] Rectum
[D] None of these
Show Answer
Correct Answer: A [Cecum]
Notes:
The cecum is used to absorb fluids and salts remaining after the completion of intestinal digestion and absorption and to mix its contents with a lubricating substance, mucus.
37. Which is also known as the master gland of our body?
[A] Pineal gland
[B] Thyroid gland
[C] Adrenal gland
[D] Pituitary gland
Show Answer
Correct Answer: D [Pituitary gland]
Notes:
The pituitary gland is also known as the master gland of the human body. It is one of the smallest glands of the human body and it secretes the most number hormones in the body.
38. What is the word used for a disease that people can catch from animals?
[A] Hypochondriasis
[B] Zoonosis
[C] Toxicosis
[D] Narcosis
Show Answer
Correct Answer: B [Zoonosis]
Notes:
Zoonosis is an infectious disease that has jumped from non-human animals to humans.
39. An example of abiotic stress is __
[A] pest
[B] insect
[C] drought
[D] vectors
Show Answer
Correct Answer: C [drought]
Notes:
An example of abiotic stress is drought. The negative effect of non-living factors on living organisms in a specific environment is known as abiotic stress.
40. Grey hair is caused due to
____:
[A] Aging of epidermal cells
[B] Death of dermal cells
[C] Loss of sebum in epidermal cells
[D] Loss of melanin in epidermal cells
Show Answer
Correct Answer: D [Loss of melanin in epidermal cells]
Notes:
The hair follicles have pigment cells that make melanin, a chemical that gives the hair its color. As one ages, these cells start to die. Without pigment, new hair strands grow in lighter and take on various shades of gray, silver, and eventually white.
