What is the angle of section of adults if they receive 18 tokens out of 54?
Difference of two numbers is 18. If they are in the ratio 4 : 3, find these numbers. (A) 72 and 54 (B) 108 and 90 (C) 54 and 36 (D) 162 and 144
Do humans have Gill slits in embryonic stage? If they have Gill slits what does it become in adults?