11. Where in the human body is the stapedius muscle situated?
[A] Nose
[B] Ears
[C] Leg
[D] Eyes
Show Answer
Correct Answer: B [Ears]
Notes:
The stapedius muscle is the smallest skeletal muscle in the entire body that is located in the middle ear. Specifically, the stapedius muscle originates from a cone-shaped structure in the tympanic cavity of each ear and then extends to the stapes bone.
12. Entomology is associated with the study of which of the following?
[A] Behavior of human beings
[B] Insects
[C] The origin and history of technical and scientific terms
[D] The formation of rocks
Show Answer
Correct Answer: B [Insects]
Notes:
Entomology is the scientific study of insects, a branch of zoology. In the past the term “insect” was more vague, and historically the definition of entomology included the study of terrestrial animals in other arthropod groups or other phyla, such as arachnids, myriapods, earthworms, land snails, and slugs.
13. Snakes, turtle, lizards and crocodiles falls under which category of animals?
[A] Amphibian
[B] Pisces
[C] Reptiles
[D] Aves
Show Answer
Correct Answer: C [Reptiles]
Notes:
Reptiles are tetrapod animals in the class Reptilia, comprising today’s turtles, crocodilians, snakes, amphisbaenians, lizards, tuatara, and their extinct relatives. The study of these traditional reptile orders, historically combined with that of modern amphibians, is called herpetology
14. Which of the following functions is performed by the kidneys in the human body?
[A] Transportation
[B] Excretion
[C] Respiration
[D] Digestion
Show Answer
Correct Answer: B [Excretion]
Notes:
The primary route in which the body eliminates substances is through the kidneys. The main function of the kidney is the excretion of body wastes and harmful chemicals into the urine.
15. What is the meaning of the term ‘Test Tube Baby’? (UPSC Prelims 1979).
[A] Fertilisation of ovum takes place in the test tube but it develops in uterus
[B] Fertilisation of ovum takes place in the test tube and develops in the test tube itself
[C] Fertilisation of the ovum takes place in the uterus but develops in the test tube
[D] Fertilisation takes place in uterus and embryo develops in uterus
Show Answer
Correct Answer: A [Fertilisation of ovum takes place in the test tube but it develops in uterus]
Notes:
Test tube baby is a term that refers to a child that is conceived outside the women’s body by a scientific process known as In-Vitro fertilization or IVF treatment. This entire process is done in a laboratory. In this process the eggs are taken from the mother’s ovary and fertilised by the sperms from the father.
Then the fertilized eggs are cultured for two to six days and allowed to be divided two to four times inside a test tube, thus the name test tube baby. These eggs are then implanted back into the uterus of a mother where it can develop normally. This is done with the sole intention for establishing and ensuring a successful pregnancy.
16. Which among the following acts as a resistance against disease in the body? (UPSC Prelims 1982)
[A] Vitamins
[B] Carbohydrates
[C] Red Corpuscles
[D] White Corpuscles
Show Answer
Correct Answer: D [White Corpuscles]
Notes:
White blood cells help you fight infection. When one gets sick, white blood cell count is higher than normal. This is because your body is releasing more of these cells to fight the infection.
17. Which one of the following types of micro-organisms is most widely used in industries? (UPSC Prelims 1998)
[A] Bacteria
[B] Bacteria and fungi
[C] Bacteria and algae
[D] Bacteria, micro-algae and fungi
Show Answer
Correct Answer: D [Bacteria, micro-algae and fungi]
Notes:
Bacteria, micro-algae and fungi are most widely used in industries
18. The study of ear, nose and throat is done in which of the following branches?
[A] Otorhinolaryngology
[B] Organology
[C] Ontogeny
[D] Ophthalmology
Show Answer
Correct Answer: A [Otorhinolaryngology]
Notes:
Otorhinolaryngology is a medical specialty that focuses on the ear, nose, and throat.
19. Who among the following is considered as the father of modern ecology?
[A] Ramdeo Misra
[B] Parthasarthy Iyengar
[C] Eugene Odum
[D] Theophrastus
Show Answer
Correct Answer: C [Eugene Odum]
Notes:
Eugene Odom is known throughout science as the father of modern ecology.
20. Which statement is true for the capsid?
[A] It consists of capsomeres
[B] This the outermost layer of most viruses
[C] It protects genetic material
[D] All of the above
Show Answer
Correct Answer: D [All of the above]
Notes:
A capsid is the protein shell of a type of virus, which encloses its genetic material.
