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Types of Selection Evidence of Evolution Human Evolution Earth’s Ch-Ch-Ch Changes! Types of Selection Evidence of Evolution Human Evolution Earth’s Timeline 10 Point 10 Point 10 Point 10 Point 10 Point 20 Points 20 Points 20 Points 20 Points 20 Points 30 Points 30 Points 30 Points 30 Points 30 Points 40 Points 40 Points 40 Points 40 Points 40 Points 50 Points 50 Points 50 Points 50 Points 50 Points

This is a change over time within a population across generations.

What is evolution?

This is the process by which good adaptations are selected for by nature, otherwise known as survival of the fittest.

What is natural selection?

Two bugs are sitting on a green leaf Two bugs are sitting on a green leaf. One is brown and does not blend in. The other is green and blends in. Which color will nature select for?

What is green?

This is the term used to describe when parents have children, those children look and behave slightly different from their parents and each other.

What is descent with modification?

This is what all living things on Earth are descended from.

What is a common ancestor?

This is the type of distribution curve where the mean is the highest and the extremes are low, like a bell curve.

What is normal distribution?

This is the type of curve where there is a surge in the mean adaptation and the extremes have died off.

What is stabilizing selection?

This is when the distribution curve SHIFTS to favor one extreme.

What is directional selection?

This is the effect that occurs when a small number of individuals settles in a new area and adapts to that area.

What is the Founder Effect?

This is type of selection that occurs when two males compete for the opportunity to mate with a female.

What is sexual selection?

This is what we call the bones and remains of past animals left behind This is what we call the bones and remains of past animals left behind. Scientists study these to get clues about what extinct animals look like or who they may be related to.

What are fossils?

This is the genetic evidence that scientists can examine This is the genetic evidence that scientists can examine. If two species share a lot of this genetic information, they are most likely related in some way.

What is DNA?

This is the study of embryos This is the study of embryos. Scientists look at similarities in the embryos of different species to see if they are related.

What is embryology?

This is what it is called when scientists look at the similarities and differences between body parts of different species.

What is comparative anatomy?

This is the type of evolution that occurs when two unrelated species look similar, like sharks and dolphins.

What is convergent evolution?

This is the scientific name for modern day humans.

What is Homo sapien?

This is the most recent extinct species of humans This is the most recent extinct species of humans. They lived as close as 30,000 years ago and existed at the same time as modern humans.

What are Neanderthals?

This is what happened to the size of our ancestor’s brains as they evolved and got closer to modern day humans.

What is enlarged (or got bigger)?

This is what happened to the size of our ancestor’s jaws as they evolved and got closer to modern day humans.

What decreased in size or got smaller?

This is what it is we call an organism that walks on two legs.

What is Bipedal?

This is the era we are in now.

What is the Cenozoic Era?

This is the era that the dinosaurs lived in.

What is the Mesozoic Era?

This is how many mass extinctions have occurred during the history of Earth (not including the one we think is happening now).

What is five?

This is where the Panspermia hypothesis says life came from via comets and meteorites.

What is space?

This is the type of extinction that occurs when species are lost at a low, continuous rate.

What is background extinction?

Final Jeopardy Notebooks closed & study guides away! No books, phones, or notes allowed!

C. Australothipecus afarensis D. Homo neanderthalensis Put the human evolution stages in order from most recent to farthest in the past: A. Homo habilis B. Homo sapiens C. Australothipecus afarensis D. Homo neanderthalensis

Homo neanderthalensis Australopithecus afarensis B, D, A, C Homo sapiens Homo neanderthalensis Homo habilis Australopithecus afarensis