1. CHAPTER 12 GEOLOGIC TIME 2. Earth’s history is recorded in therock recordsuch as the rock layers of the Grand Canyon. 3. Principle of Uniformitarianism – the forces…

Slide 1Better Terrestrial living – origin of the amniotes Part 7 Slide 2 Amniotes Amphibians 2 terrestrial tetrapod groups Slide 3 Slide 4 Amniotes reptile/bird, mammal…

Slide 1 Earth History GEOL 2110 The Paleozoic Era Silurian and Devonian Periods - Part I Time of Fish, Amphibians and Forests Slide 2 Major Concepts Biodiversity on the seafloor…

Slide 1 Grade 7 Science Slide 2  3 very long Eons:  Hadean,  Archean and  Proterozoic;  Covers 87% of earth’s history;  Formation of earth, volcanic activity;…

Slide 1 Geologic Time Slide 2 What is Geologic Time? A relative scale which divides geologic time into units. Relative time is compared to something. Units are from largest…

Slide 1 Warm-Up Questions 1.How old is the Earth? 2.How long ago did life originate on Earth? 3.What did the first life-forms look like? 4.How long ago did dinosaurs go extinct?…

BIO 2310 Vertebrate Characteristics Kingdom Animalia; Phylum Chordata; Subphylum Vertebrata Chordata Characteristics Dorsal hollow nerve cord Notochord (âback cordâ) Pharyngeal…

Section 12.2 Fish Fish Are the most numerous and widespread of the vertebrates Key feature of all fish are that they have gills for exchange of oxygen and carbon dioxide…

Nonvertebrate Chordates, Fishes, and Amphibians Nonvertebrate Chordates, Fishes, and Amphibians Ms. Moore 3-1-13 What is a Chordate? Phylum: Chordata A chordate is an animals…

Warm Up 1/8/08 An example of a geologic event that could be recorded in rocks is ____. a. a lunar eclipse c. a civil war b. a volcanic eruption d. the occurrence of sun spots…