Chapter 19. Section 1: How Did Life Begin? Preview Bellringer Key Ideas The Basic Chemicals of Life Lifes Building Blocks The First Cells Summary.
IQ # 2 2.The half-life of carbon-14 is about 5600 years. A fossil with ¼ the normal proportion of C 14 is probably _______ years old. 1.Answer the following.
Origins of Life Early Idea: Spontaneous Generation –The idea that non-living material can produce life Life magically appears! –Examples Meat produces.
12.4.3 Evolution 2
Origin of life
The Origin of Life The Origin of Life OCEAN 355 Lecture Notes #4 Autumn 2008 H H H H.
CH 27 Origin of Life & Bacteria. Universe formed 15 billion years ago (Big Bang) Galaxies formed from stars, dust and gas Earth formed 4.6 billion years.
Ch 16: Prokaryotes & Viruses Vocabulary Stromatolite Arachaea Bacteria Coccus Bacillus Spirochete Binary fission Endospore Cyanobacteria.
Final Review. Embryology Zygote: fertilized egg Gastrulation- endoderm, mesoderm, and ectoderm form Placenta: provides nutrients to the fetus.
14-2: EARTH’S HISTORY 14-2: EARTH’S HISTORY. The Formation of Earth ► About 5 billion years ago, our solar system was a swirling mass of gas and dust.
Prokaryotes & Viruses Chapter 16. Early Earth Earth is about 4.6 billion years old Fossils resembling photosynthetic prokaryotes have been found in dome.
An Introduction to
