“Pace race means, running the whole distance of a race at a constant speed.” Which are the races included in pace races?

Pace races mean running the whole distance of a race at a constant speed. In pace races, an athlete run the race with uniform speed.  Example - 800mt, 1500mts.

All human races have evolved from a common ancestor because everybody has: (i) Common body design, structure, physiology and metabolism (ii) Constant chromosome number (iii) Common genetic blue print (iv) Freely inter-breeding species.

(a) The pain in her legs could be because of the accumulation of lactic acid in the muscles. During heavy exercise or running, etc., the muscle cells respire anaerobically and produce...

correct answer is (B) 7.

(B) 1 correct answer is

The  correct answer is (D) 206

(D) The sex of Q is not given hence the exact relation ship b/w N & Q cannot be established.

(B) M + K - R

 (c) Negroid race 

(b) Negroid Race