Page 2 - Basic Review Flashcards
What does the study of embryology (comparative anatomy) indicate?
That humans, birds, fish, pigs, turtles evolved from a common ancestor
What is the longest / shortest era on the geological time scale?
Longest: Precambrian
Shortest: Cenozoic
What is a vestigial organ? Which in the human body?
Organs that dont have a function [appendix, wisdom teeth]
How old is the earth?
4.5 billion ysars old
What is allopatric speciation?
Where a physical barrier divides a population in half
What is sympatric speciation?
Where a species evolves into a new species without a physical barrier
What is mimicry?
Copying the appearance of another organism
What is camouflage?
The organism blends into its surroundings
What is a niche?
Combination of an organisms habitat and its role in the habitat
What was lamarcks theory vs darwins theory?
Lamarck’s: “use or disuse” - pass changes onto offsprings
Darwin’s: natural selection - nature selects bests traits and who survives
Who created the system of classification? What are the 7 categories?
Carolos Linnaeus
Kingdom, phylum, class, order, family, genus, species
What does each word in felis domesticus mean?
Felis: genus
Domesticus: species
In which type of graph are the very light and very dark coloured butterflies eliminated?
Stabilizing
Which type of selection acts as the intermediate coloured butterflies and favoured the extremes?
Disruptive
