Irreducible complexity
Irreducible complexity (IC) is a pseudoscientific theory promoted by advocates of intelligent design and evolution denial. IC postulates that certain biological systems are too complex to have evolved...
Irreducible complexity - Wikipedia
Evolution of the eye
The evolution of the eye has been a subject of significant study, as a distinctive example of a homologous organ present in a wide variety of taxa. Complex, image-forming eyes evolved independently so...
Evolution of the eye - Wikipedia
Evolution of flagella
The evolution of flagella is of great interest to biologists because the three known varieties of flagella (eukaryotic, bacterial, and archaeal) each represent a sophisticated cellular structure that ...
Exaptation
Exaptation (a replacement for the teleologically-loaded term "pre-adaptation") and the related term co-option describe a shift in the function of a trait during evolution. For example, a trait can ev...
Evolutionary baggage
Evolutionary baggage is the part of the genome of a population that was advantageous in past individuals but is disadvantageous under the pressures exerted by natural selection today.
Genes that m...
Evolution of color vision
Color vision, a proximate adaptation of the vision sensory modality, allows for the discrimination of light based on its wavelength components.
Color vision requires a number of opsin molecules wi...
Type three secretion system
Type three secretion system (often written Type III secretion system and abbreviated TTSS or T3SS, also called Injectisome or Injectosome) is a protein appendage found in several Gram-negative bacteri...
Type three secretion system - Wikipedia