Deck 5 (slides 23-27) Flashcards
Other evidence for macroevolution is the _________ record.
Fossil
The fossil record includes the remains of dead organisms in ___________ rock; organisms in lower rock layers tend to be _______, while organisms in higher rock layers tend to be more ________-did upper layer organisms evolve from lower layer ones?
Sedimentary, simpler, complex
The fossil record also includes ___________ species.
Transitional
An example of transitional species is the evolution of _________; fish—>__________—>reptiles—>birds or mammals.
Vertebrates, amphibians
If macroevolution happened, there should have been __________ of transitional species (example: many species between a fish and an amphibian).
Millions
Some use the lack of these transitional species as an argument ________ evolution.
Against
Other evidence for macroevolution are ________, similarities between organisms that provide evidence that the organisms may have evolved from a common ancestor (like botanan curus and species Z).
Homologies
An example of homologies are similarities in _______ structure.
Body
Homologous structures are similar structures that related species may have ________ from a common ancestor.
Inherited
_______ of vertebrates contain same bones in same position, but bones with different ______; evolves from a common ancestor?
Limbs, shapes
Vistigial organs are organs that are so reduced in size or function that they are merely ________ of similar organs in tiger species; does this show a common ancestor?
Traces
An example of a vistigial organ are boas and pythons have tiny _______ that are all that remains of what once could have been ______?
Bones, legs
An example of a vistigial organ is human’s miniature _________ at the end of the spine-evolved from a ______?
Tailbones, tail
An example of a vistigial organ is a human’s _______-from a common ancestor where it had a purpose?
Appendix
Homologies can can also be similarities in early ___________.
Development