Grade 9 Regents and Honors Living Envirnment

Week of 12/5 From text book please read and do questions for pages 449-490

Need to know list Evolution

Genetic variation

natural selection

artifical selection

extinction

mass extinction

homologus structures

vestigal structures

fossil sequence

camparitive biochemistry

comparitive embryology

camparitive anatomy

geologic evolution

Survival of the fittest

reproductive isolation

punctuated equibrium

gradualism

concept of common ancestry

Why are variartions within a population more important than similarities

You must be able to explain why only certain traits can be passed down to offspring.  What are the differences between changes due to evolution and changes due to aging

What is an adaptation? How can it help an organism survive? How does it become more widespread in a population?