evolution text Flashcards
what are some environmental challenges organisms need to overcome to survive (5)
- weather
- famine
- food
- space
- mates
three ways an animal can adapt
- physical (camouflage)
- structural (talons)
- behaviour
what is mimicry
when a harmless animal takes the appearance of a harmful animal
what are adaptations determined by
environmental conditions
what are mutations
permanent change to the genetic makeup of the organism, some mutations are good, some are bad
what is a scientific theory
a well supported testable explanation
define evolution
the process by which modern organisms have descended from ancient organisms
who developed the taxonomy system
Carl Linnaeous
what was Lamarck’s theory
that organisms are striving towards perfection (this is incorrect)
what ship did Darwin travel on, and for how long
HMS Beagle, for 5 years
what was Lyell’s theory
Earth’s surface is always changing, through a similar and gradual process, Darwin found evidence to support this
what are fossils
preserved remains of organisms
what do most fossils consist of
hard body parts (bones)
what is Archaeopteryx
the first bird
what is Acanthostega
the link between fish and amphibians
