Tuesday, December 10, 2013

Biology 2 Unit 4 Day 2

Day Starter
Objective: Students will illustrate and explain mechanisms of evolution on vocab charts using the words gene flow, genetic drift, stabilizing selection, disruptive selection, directional selection, adaptive radiation, and speciation. 

Question: 
1) What is sexual selection? Give an example.
2) Why does gene flow cause evolution?
3) What is genetic drift? Give an example.

Exit Ticket:
Evolution is a change in a population over time. What causes a population to change over time? Write a perfect 3 sentence paragraph (topic + 2 details) using the following sentence starter, "Evolution is caused by..." and at least 1 green word from the day starter objective.