A link between dinosaurs and birds is found by unearthing remnants of the intermediate species archaeopteryx.
Fossil record
This is a feature that no longer serves a purpose, but is left over from an organism's evolutionary past.
Vestigial trait
A group of organisms that share a common derived trait
Clade
The islands where Darwin observed tortoises and finches
Galapagos
A certain gene is 99.9% identical between humans and chimpanzees, but only 78% identical between humans and frogs.
DNA evidence
This is a feature that is shared by different species due to a common ancestor.
Homologous Feature
A trait that is shared between organisms that first arose in their most recent common ancestor
Derived character
Goosebumps are an example of what type of feature on humans
vestigial
Whales still have finger and hand bones within their flippers and even have a pelvic bone- evidence of the evolutionary past.
Comparative anatomy- vestigial features.
This is a feature that two species share due to similar selective pressures, but that is NOT inherited from a common ancestor.
Analogous feature
The concept that the simplest explanation is always best, all other things being equal.
Parsimony (or Ockham's Razor)
An explanation for a natural phenomenon that has been tested and corroborated in accordance with the scientific method.
Scientific Theory
Very early in development, humans have gill slits and a tail like our ancient ancestors did.
Comparative anatomy- embryonic development.
The wings of a bat and the wings of a butterfly are an example of this feature
Analogous
(refer to drawing on board) Which species is the most closely related to species C?
Species D
The names of the two scientists who developed the theory of evolution by natural selection (last names only is OK)
Darwin and Wallace
A human being and an oak tree both contain cells with mitochondria that carry out cellular respiration.
Homologous feature.
The opposable thumbs of a chimpanzee and those of a human are an example of this kind of feature
Homologous
Make a cladogram of a hagfish, perch, salamander, lizard, pigeon, mouse, and a chimp
characteristics: Jaws, lungs, claws/nails, feathers, fur
*Draw on board*
Name two things that can be done to prevent the rise of drug resistant bacteria
*answers may vary*