In human beings, vestigial organs are
Wisdom teeth, coccyx, vermiform appendix, nail eyelid
Wisdom teeth, coccyx, vermiform appendix, pancreas, elbow joint
Wisdom teeth, coccyx, vermiform appendix, nictitating membrane, auricular muscles
Coccyx, wisdom teeth, nail, auricular muscles
'A brief reduction in size of a population, due to natural calamities, usually leads to random genetic drift'. For this statement, identify the correct example from the following.
Presence of $NaCl$ in body fluid indicates that life originated in
A population splits into two or more groups and these groups occupy the different ecological zones. This is known as
Using various resources such as your school library or the internet and discussions with your teacher, trace the evolutionary stages of any one animal say horse.