Three things are necessary for humans to keep their balance while walking on two legs.

Question; Three things are necessary for humans to keep their balance while walking on two legs.

The head should be positioned in the  

⇒ middle, center of the body.

The weight of the  

⇒ upper body should be over the pelvis.

The  

⇒ legs, knees need to be stable enough to support the body's weight.

gametes or germ cells are haploid cells (example: sperm and ova) containing only one set (or n) number of chromosomes and autosomal or somatic cells are diploid cells containing 2n number of chromosomes.