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Patterns in Evolution

Patterns in Evolution

Patterns in Evolution. Key concept : Evolution occurs in patterns. Evolution through natural selection is not random. Natural selection can have direction. The effects of natural selection add up over time. Convergent Evolution.

By Melvin
(309 views)

Chapter One Game Show!

Chapter One Game Show!

Chapter One Game Show!. You gotta LOVE Earth Science!. 1. Name the steps of the Scientific Method (in chronological order, please). 2. What is an element?. 3. What are the four branches of Earth Science?. 5. True or false: asphalt is considered to be biodegradable. Why or why not?. 4.

By richard_edik
(299 views)

THE FOSSIL RECORD Movement of Ocean Water Surface currents Coriolis Effect

THE FOSSIL RECORD Movement of Ocean Water Surface currents Coriolis Effect

THE FOSSIL RECORD Movement of Ocean Water Surface currents Coriolis Effect. THE FOSSIL RECORD Movement of Ocean Water Surface currents Currents are also affected by the Earth's rotation through the Coriolis Effect . Currents in the northern hemisphere tend to be

By hoshi
(176 views)

Patterns in Evolution

Patterns in Evolution

Patterns in Evolution. Key concept : Evolution occurs in patterns. Evolution through natural selection is not random. Natural selection can have direction. The effects of natural selection add up over time. Convergent E volution.

By alameda
(227 views)

Interaction of Dynamics And Structure in Food Webs Jonathan Cannon Gavin Fay Andrew Hein

Interaction of Dynamics And Structure in Food Webs Jonathan Cannon Gavin Fay Andrew Hein

Interaction of Dynamics And Structure in Food Webs Jonathan Cannon Gavin Fay Andrew Hein Vanessa Weinberger. Background. The dynamical perspective on food webs asks how populations of consumers and producers vary over short time scales.

By torsten
(169 views)

Extinctions and how to change diversity 1. Sepkoski’s Curves and others. 2. How to change diversity 3. Models of div

Extinctions and how to change diversity 1. Sepkoski’s Curves and others. 2. How to change diversity 3. Models of div

Extinctions and how to change diversity 1. Sepkoski’s Curves and others. 2. How to change diversity 3. Models of diversity increase 4. Perturbations to the curves 5. End Permian event 6. End Cretaceous event. 1a. Sepkoski’s Curves and others. Family diversity. Time. Orders.

By alberta
(139 views)

Extinction: past, present, future

Extinction: past, present, future

Extinction: past, present, future. Material: Gwen Raitt. BCB 341: Principles of Conservation Biology. What is Extinction?. Extinction is the process through which a species or higher taxonomic category ceases to exist.

By taya
(105 views)

Fossils and Evolution

Fossils and Evolution

Fossils and Evolution. Amazing Events in Life History. Sex - Who Needs It? We are a team - Mitochondria The Great Freeze 900-600 m.y. ago What survived and how? Mass Extinctions Dinosaurs = 4th worst Permian extinction (220 m.y. ago) took out 90% of all species. Mass Extinctions.

By Jimmy
(254 views)

Extinctions: The End of Biodiversity

Extinctions: The End of Biodiversity

By C Kohn, Waterford, WI. Extinctions: The End of Biodiversity . What is extinction? . Extinctions occur when the last individual of a species dies out. Functional Extinctions occur when individuals remain but the odds of sustainable reproduction are low

By hao
(401 views)

Origin and Evolution of Life on Earth Bennett et al. Chapter 5

Origin and Evolution of Life on Earth Bennett et al. Chapter 5

Origin and Evolution of Life on Earth Bennett et al. Chapter 5. HNRS 228 Astrobiology w/Dr. H. Geller. Origin and Evolution of Life on Earth - Chapter 5 Overview. Searching for the origin Functional beginnings of life From chemistry to biology at the molecular level Prokaryotes and oxygen

By jessie
(99 views)

The History of Life on Earth

The History of Life on Earth

The History of Life on Earth. Chapter 25. Question. How have events in the Earth’s history contributed to life as we know it?. Bazinga. How did Life get started?. One Idea - Chemical Evolution: the evolution of life by abiogenesis. Steps. 1. Monomer Formation

By khanh
(204 views)

Biodiversity

Biodiversity

Biodiversity. Day 6. What is Biodiversity?. The variety of life in an area that is determined by the number of different species in that area. There are 2 main types:. The variety of genes in a population. Number of different species in a community. 1) Genetic Diversity.

By elda
(157 views)

KEY CONCEPT Evolution occurs in patterns.

KEY CONCEPT Evolution occurs in patterns.

KEY CONCEPT Evolution occurs in patterns. Evolution through natural selection is not random. . Natural selection can have direction. The effects of natural selection add up over time. Convergent evolution describes evolution toward similar traits in unrelated species. kit fox. red fox.

By rumer
(107 views)

Today

Today

Today. Hand in any work needed. Get out a small piece of paper, PUT YOUR NAME ON IT. When bell rings the quiz will start and you will have 1 minute per question to answer. Question 1. List the order the rocks came in First Second Third Forth Fifth Sixth. Question 2.

By quant
(138 views)

Practice Clicker Quiz

Practice Clicker Quiz

Practice Clicker Quiz. Let’s review for the final! No points, just review. 1. Which of these is NOT true about energy in the ecosystem?. Energy cannot be recycled. Energy is captured by autotrophs . Energy transfer is effcient . The primary source of energy is the sun.

By fritz
(145 views)

Primate Evolution

Primate Evolution

Primate Evolution. 3 November, 2009. Time, time, time…. Origin of life. Earth’s origin. Themes. Bush analogy (vs. ladder) “Extinction is the rule” Incompleteness of the fossil record “Once we were not alone” The nature of the evidence Fossils Molecular- protein/DNA. Class- Mammalia.

By lacey
(102 views)

Evidence for Evolution

Evidence for Evolution

Evidence for Evolution. Fossils. Evidence for evolution. Fossils. Show: Evolution Primer: How do we know evolution happens?. Evidence for evolution. DNA All life uses the same 4 DNA bases: thymine, adenine, guanine, cytosine

By inara
(188 views)

7.5 Other Objects in the Solar System

7.5 Other Objects in the Solar System

7.5 Other Objects in the Solar System. Comets, dwarf planets, meteoroids and asteroids are other important objects in the solar system Objects that circle the Sun beyond the orbit of Neptune are called trans- Neptunian objects

By gayle
(243 views)

AP ENVS

AP ENVS

AP ENVS. THURS DEC 19 2013. THE VOCABULARY OF EVOLUTION. Population Selection pressure Adaptation/Adaptive trait Genetic variation Mutation Directional selection Stabilizing selection Disruptive selection Divergent evolution Convergent evolution Artificial selection Speciation

By vesna
(191 views)

studied to become a clergyman at Cambridge University (1827-1831)

studied to become a clergyman at Cambridge University (1827-1831)

Charles Darwin. born in Shrewsbury, England, in 1809. studied medicine at Edinburgh University (1825-1827) where the sight of blood and surgery without anesthetics repulsed him. studied to become a clergyman at Cambridge University (1827-1831).

By orea
(66 views)

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