1st stage:

Streptococcus is a genus of gram-positive coccus (plural cocci) or spherical bacteria that belongs to the family Streptococcaceae, within the order Lactobacillales (lactic acid bacteria), in the phylum Firmicutes.

 

 

Deinococcus radiodurans is an extremophilic bacterium and one of the most radiation-resistant organisms known. It can survive cold, dehydration, vacuum, and acid, and therefore is known as a polyextremophile. It has been listed as the world’s toughest known bacterium in The Guinness Book Of World Records.

 

 

 

2nd stage: 

The muscular system is composed of specialized cells called muscle fibers. Their predominant function is contractibility. Muscles, attached to bones or internal organs and blood vessels, are responsible for movement. Nearly all movement in the body is the result of muscle contraction. How much do we depend on our body, muscles, eyes, bones, etc.

Dried out tears

Basal tears. These are your basic tears. The eyes roll around in them all day

Irritant tears. These are your eyewash tears

Psychic or emotional tears. These tears gush in response to strong emotions like sadness, grief, joy or anger

 

 

3rd stage: 

Hair is one of the defining characteristics of mammals. The human body, apart from areas of glabrous skin, is covered in follicles which produce thick terminal and fine vellus hair.

 

This is quite self explanatory. Right handed, left handed.

Arm.