Because there is always an opposite side of the body.
The fingernails in the anatomical position are facing anteriorly, towards the front of the body.
On average, both males and females have 12 pairs of ribs. There is no anatomical difference in the number of ribs between males and females.
The anatomical term for armpit is axilla.
They don't. Everyone has the same number of ribs.
The anatomical term is "medial."
inferior or distal
The fingernails in the anatomical position are facing anteriorly, towards the front of the body.
1 and 5
The difference is between factor pairs and distinct factors. With square numbers, one of the factor pairs will be the same number twice. When listing the distinct factors, that number is only listed once.
The proper direction to count phalanges on the right hand in anatomical position is from proximal to distal. Start with the phalanx closest to the metacarpals (proximal phalanx), then the middle phalanx, and finally the distal phalanx at the tip of the finger.
There are no clear anatomical reasons for the direction of the thumb. It is the result of how our hand evolved over time, providing us with dexterity and the ability to grasp objects with precision. This anatomical feature has allowed humans to develop advanced tool use and manipulation skills.
How they're listed. The factors of 20 are 1, 2, 4, 5, 10, 20 The factor pairs of 20 are (20,1)(10,2)(5,4)
Factors go in pairs; prime factors are listed least to greatest. 2, 3 and 11
(36,1)(18,2)(12,3)(9,4)(6,6)
On average, both males and females have 12 pairs of ribs. There is no anatomical difference in the number of ribs between males and females.
Factor pairs are just the factors of a number listed in a different way. The factors of 20 are 1, 2, 4, 5, 10, 20 The factor pairs of 20 are (20,1)(10,2)(5,4)
A pair of scissors is an example of an object that works in pairs and moves in opposite directions as you open and close them to cut objects.