Evidence for Evolution Flashcards
(17 cards)
How does comparative anatomy provide evidence for evolution?
It shows structural similarities across different species, suggesting a common ancestor.
Provide an example for comparative anatomy.
The pentadactyl limb structure in birds, mammals, reptiles, and amphibians.
How does comparative embryology provide evidence for evolution?
Embryos of different species often exhibit similar structures and developmental processes during the early stages of life, suggesting common ancestry between these species.
How does selective breeding provide evidence for evolution?
Shows that deliberate selection of desireable traits can lead to significant changes in a population over relatively short periods of time.
How does biogeography provide evidence for evolution?
shows how species evolve differently in isolated environments, revealing patterns of common ancestry and adaptation to diverse habitats over time.
How does the fossil record provide evidence for evolution?
Shows gradual changes in species over time, documenting transitional forms and linking past and present organisms.
How does DNA hybridisation provide evidence for evolution?
Reveals genetic similarities and differences between species, indicating their evolutionary relationships and common ancestry.
What is a vesigial structure?
A genetically inherited structure that no longer appears to function in the same way as it did in the ancestor.
What type of rocks are fossils typically found within?
Sedimentary rocks.
What is the comparative dating of fossils called?
Relative dating.
What is dating fossils using a radioisotope called?
Radiometric dating.
What isotope is used in radiometric dating?
Carbon-14
What is the half life of carbon-14?
5730 years.
What radioisotope is used to date volcanic rocks?
Potassium-40
What daughter isotope accumulates in volcanic rocks?
Argon-40
What particles in rocks are affected by the Earth’s magnatism?
Iron particles.
What is each layer of rock called?
Strata
