31. Cuttlefish is a member of which of the following?
[A] Mollusca
[B] Echinodermata
[C] Pisces
[D] Amphibia
Show Answer
Correct Answer: A [Mollusca]
Notes:
Cuttlefish is a member of Mollusca. They belong to the class Cephalopoda, which also includes squid, octopus and nautilus.
32. Which layer has the highest concentration of keratin and lamellar granules?
[A] Stratum Basale
[B] Stratum Spinosum
[C] Stratum Corneum
[D] Stratum Granulosum
Show Answer
Correct Answer: C [Stratum Corneum]
Notes:
The Stratum Corneum layer has the highest concentration of keratin and lamellar granules. Stratum Corneumlayer contains 25-30 layers of dead flattened keratinocytes
33. The ________ is responsible for why you would feel something touch your hair.
[A] Root Hair Plexus
[B] Hair Follicle
[C] Hair Root
[D] None of the options
Show Answer
Correct Answer: A [Root Hair Plexus]
Notes:
A hair plexus or root hair plexus is a specialized group of nerve fiber endings and acts as a very sensitive mechanoreceptor for tactile sensation.
34. Myopia and hypermetropia can be corrected by __
[A] Concave and a plano-convex lens
[B] Concave and convex lens
[C] Convex and concave lens
[D] Plano-concave lens for both defects
Show Answer
Correct Answer: B [Concave and convex lens]
Notes:
Myopia and hypermetropia can be corrected by Concave and convex lens respectively.
35. The three major types of muscles in the body are:
[A] Smooth muscle, sports muscles, and skeletal muscles
[B] Smooth muscle, cardiac muscle, and skeletal muscle
[C] Smooth muscle, running muscle, and face muscles
[D] Smooth muscle, flexible muscle, and strength muscle
Show Answer
Correct Answer: B [Smooth muscle, cardiac muscle, and skeletal muscle]
Notes:
The three major types of muscles in the body are Smooth muscle, cardiac muscle, and skeletal muscle
36. Which of the following cells is involved in humoral immunity?
[A] T-cells
[B] B-cells
[C] Mast cells
[D] Both T and B cells
Show Answer
Correct Answer: B [B-cells]
Notes:
B cells are a type of lymphocyte responsible for the humoral immune component of the adaptive immune system.
37. What happens if your adrenal glands are not working properly?
[A] low blood pressure
[B] low blood levels of sugar
[C] high blood levels of potassium
[D] All of the above
Show Answer
Correct Answer: D [All of the above]
Notes:
If your adrenal glands are not working properly resulting in low blood pressure, low blood sugar levels, and high levels of potassium in the blood.
38. The type of placenta found in humans is called __.
[A] Discoidal
[B] Cotyledonary
[C] Zonary
[D] Diffuse
Show Answer
Correct Answer: A [Discoidal]
Notes:
Placenta found in humans is called discoidal. It is a placenta in which the chorionic villi are arranged in a circular plate.
39. Where does the fertilization of the egg take place with the sperm?
[A] Ovaries
[B] Fallopian tubes
[C] Uterus
[D] Vagina
Show Answer
Correct Answer: B [Fallopian tubes]
Notes:
The fertilization of the egg with the sperm occurs in the fallopian tube.
40. Which of the following genera of fungi is not responsible for causing ringworms?
[A] Trichophyton
[B] Microsporum
[C] Epidermophyton
[D] Macrosporum
Show Answer
Correct Answer: D [Macrosporum]
Notes:
Ringworm or round red or silver type superficial fungal infections of the skin are caused by species of Trichophyton, Microsporum, and Epidermatophyton. There are dry scaly lesions on the skin, nails, and scalp that cause intense itching.
