Science Test 1 General Science Aptitude
Science Test 1 General Science Aptitude
Question 21
Speed of sound is maximum in _____?
Sound travels fastest in solids due to their high density and closely packed particles.
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Question 22
At what point the Centigrade and the Fahrenheit temperatures are the same?
At \(-40^\circ\), Celsius and Fahrenheit scales converge:
\[ C = \dfrac{5}{9}(F - 32) \]
Setting \(C = F\), solving gives \(F = -40\).
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Question 23
Insulin in human is produced by _____?
Insulin is a hormone secreted by the pancreas, specifically by the beta cells of the islets of Langerhans, to regulate blood glucose.
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Question 24
Nuclear membrane is absent in _____?
Prokaryotes lack a true nucleus and nuclear membrane. Their genetic material is free in the cytoplasm.
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Question 25
How many bones are there in the adult human body?
An adult human body contains 206 bones, forming the axial and appendicular skeleton.
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This question is based on Literary Appreciation.
"O, let us have him, for his silver hairs will purchase us a good opinion and buy men's voices to commend our deeds; it shall be said his judgment rules our hands. Our youths and wildness shall not appear, but all be buried in his gravity." —William Shakespeare: Julius Caesar
In the excerpt above, 'his silver hairs' refers to: