Evolution EVOLUTION OF POPULATIONS. Three Cases of Variation What specifically causes the change in each of these populations of organisms:What specifically.
Natural Selection. Homework Reminder, paper due 4/2.
1. 2 Adaptations of Living Things 3 4 5 In what ways need an organism be adapted? Defence Food and other essentials Respond to change Reproduce.
Adaptation and Variation Organisms face environmental challenges that limits their ability to survive. Example: severe weather Famine Competition for food.
EVOLUTION BY MEANS OF NATURAL SELECTION Ch. 10 & 15.
Selection and Change: Biology and Behavior AILUN – Lecture 4 S. Glenn - AILUN 2008.
Microevolution - involves processes of evolutionary changes within populations - these changes result in shifts at the DNA level - they lead to the sorts.
Unit 4 Evolution Biology 30 Mr. Oosterom. Diversity Of Life Evolution refers to the relative change in the characteristics of populations that occur.
What is Evolution? The process of change in the traits of populations over time. Process by which species' characteristics change over generations. Evolution.
Pollution & Evolution
The Story of the Peppered Moth
Announcements September 6, 2006. Steve “crocodile hunter” Irwin died Monday morning after being attacked by a stingray while shooting a TV program off.