Chapter 93

multifaceted having many facets

agnostic a person who holds that the existence of the ultimate cause, as God, and the essential nature of things is unknown and unknowable, or that human knowledge is limited to experience

raison d’être is a French expression commonly used in English, meaning “reason for being” or “reason to be”.

 

Basic Structure of an Amino Acid

 

 

 

amino acids Amino acids are organic compounds that combine to form proteins.

 

 

 

 

Basic Structure of a Nucleotide

 

Nucleotide Nucleotides are the subunits that are linked to form the nucleic acids ribonucleic acid (RNA) and deoxyribonucleic acid (DNA), which serve as the cell’s storehouse of genetic information.

 

 

Double-helix Structure of DNA

 

DNA Deoxyribonucleic acid (DNA) is a molecule that carries the genetic instructions used in the growth, development, functioning and reproduction of all known living organisms and many viruses.

 

 

 

Darwinian Evolution in Humans
Darwinian evolution The theory of evolution by natural selection, first formulated in Charles Darwin’s book “On the Origin of Species” in 1859, is the process by which organisms change over time as a result of changes in heritable physical or behavioral traits. Changes that allow an organism to better adapt to its environment will help it survive and have more offspring.

 

 

paradigm shift A paradigm shift is a fundamental change in the basic concepts and experimental practices of a scientific discipline.