Phylogenetic Trees
Scientists use _______ and ________ to identify the relationship between species on a phylogenetic tree.
What is DNA and Fossil Trees?
Who was the famous guy who worked with natural selection?
Who was Charles Darwin?
A map of the evolutionary relationships among organisms to grow over time.
What is a phylogenetic tree?
Scientists use this method to make educated guesses.
What is a Hypothesis?
_______ traits are shared among species with a common ancestor, whereas _______ traits are evolved independently
What is Homologous and Analogous?
A population of birds begins to have either very large or very small beaks, while medium-sized beaks become less common. Which type of natural selection is this?
What is disruptive selection?
Scientists call an organism that many species came from.
What is a Common Ancestor?
What is a mutation?
Scientists use this to map the evolutionary relationships among organisms.
Why do scientists use phylogenetic trees?
Rabbits with white fur survive better in snowy environments, so over time more rabbits have white fur. Which type of natural selection is happening?
What is directional selection?
Advantageous traits become more common in the population over multiple generations.
What is Natural Selection?
Factors that might cause a species to evolve or adapt.
What is 1) Climate change 2) Pollution
BUT MOSTLY changing environment