Evolution Natural Selection And Speciation 6371
Chapter 25: Phylogeny and Systematics. phylogeny – evolutionary history of a species or group of species.
Fossils. What is a fossil? A fossil is an impression, cast, original material or track of any animal or plant that is preserved in rock by natural processes.
Classification RYLIE WILLIAMS DEANNA HOLBY. What is Classification? To group according to like traits Lk.
Today’s Agenda…3/7 Bellringer: What causes variation among organisms? What will happen to helpful variations? What will happen to harmful variations?
1 Introduction to Biology. 2 Biology – The Study of Life Life arose more than 3.5 billion years ago First organisms (living things) were single celled.
Chapter 25 The History of Life on Earth. Antarctica many millions of years ago Antarctica now… WOW!!
Biological Classification. Group the following in any way you would like, but justify your grouping! Frogs Bears Ants Spiders Bacteria Humans Dolphins.
Fossils – Evidence of the Past
Evolution
Biological Classification
1 The Science of Life. 2 Biology – The Study of Life Life arose more than 3.5 billion years ago First organisms (living things) were single celled Only.
