General Science Questions (MCQs) for Competitive Examinations
General Science Multiple choice questions for GK paper in SSC, NDA, CDS, UPSC, UPPSC and State PSC Examinations. These questions are part of GKToday’s 35000+ MCQs Bank Course in GKToday Android App
31. Which of the following bird is viviparous?
[A] Penguin
[B] Humming bird
[C] Albatross
[D] None of these
Show Answer
Correct Answer: D [None of these]
Notes:
Birds constitute the only vertebrate class that is both rich in species number and exclusively oviparous whereas mammals are viviparous animals.
32. Which of the following animals have incisors that continue to grow their entire life?
[A] elephant
[B] walrus
[C] hamster
[D] lion
Show Answer
Correct Answer: C [hamster]
Notes:
Hamsters are rodents belonging to the subfamily Cricetinae. It consists of 19 species classified into seven genera.
33. Which one of the following is not a mammal?
[A] Ant eater
[B] Echidna
[C] Heloderma
[D] Dolphin
Show Answer
Correct Answer: C [Heloderma]
Notes:
Heloderma Toxoferon is a genus of lizards. There are five species, all of which are poisonous. It is the only extant genus of the Helodermatidae family.
34. Which of the following tissue is found in the inner walls of organs?
[A] Visceral Muscle Tissue
[B] Skeletal Muscle Tissue
[C] Cardiac Muscle Tissue
[D] None of these
Show Answer
Correct Answer: A [Visceral Muscle Tissue]
Notes:
Visceral Muscle Tissue is found in the inner walls of organs. While Skeletal Muscles are typically attached to bones and Cardiac muscles are found in the heart.
35. What is the role of dendrites in neurons?
[A] send messages from all the senses to the brain
[B] receive many signals from other neurons
[C] carry messages from the brain to all the muscles
[D] carry both sensory and motor nerves
Show Answer
Correct Answer: B [receive many signals from other neurons ]
Notes:
Nerve cells or neuron have extensive processes and are called dendrites. These occupy a large surface area of a neuron. They receive many signals from other neurons and contain special proteins that receive, process and transfer these to the cell body.
36. Which type of muscle is found in your digestive system?
[A] Rectus abdominus
[B] Cardiac muscle
[C] Smooth muscle
[D] Stomach muscles
Show Answer
Correct Answer: C [Smooth muscle]
Notes:
Smooth muscle is located in various internal structures including the digestive tract, uterus, and blood vessels such as arteries.
37. Which of the following is one of the innermost and thinnest layers of arteries and veins?
[A] Tunica Media
[B] Tunica Intima
[C] Tunica Externa
[D] None of these
Show Answer
Correct Answer: B [Tunica Intima]
Notes:
Tunica Intima is one of the innermost and thinnest layers of arteries and veins. It contains endothelial cells. They are in direct contact with the bloodstream.
38. Name the hormone which takes part in the release of FSH and LH from the anterior pituitary.
[A] Growth hormone
[B] GnRH
[C] Somatostatin
[D] TRH
Show Answer
Correct Answer: B [GnRH]
Notes:
GnRH is the gonadotropin-releasing hormone, which is responsible for the release of follicle-stimulating hormone (FSH) and luteinizing hormone (LH).
39. The corpus luteum is the source of secretion of:
[A] LH
[B] Estradiol
[C] Estrogen
[D] Progesterone
Show Answer
Correct Answer: D [Progesterone]
Notes:
The corpus luteum is the source of secretion of Progesterone. Progesterone is a hormone released by the ovaries.
40. What is the other name for Vitamin B2?
[A] Dextrose
[B] Riboflavin
[C] Thiamine
[D] Haemoglobin
Show Answer
Correct Answer: B [Riboflavin]
Notes:
Riboflavin, also known as vitamin B2 is an easily absorbed colored micronutrient with a key role in energy metabolism, and for the metabolism of fats, ketone bodies, carbohydrates, and proteins.
