'Mass extinction events' presentation slideshows

Sustaining Biodiversity: The Species Approach

Sustaining Biodiversity: The Species Approach. Chapter 9. Core Case Study: The Passenger Pigeon: Gone Forever. Once the most numerous bird on earth. In 1858, Passenger Pigeon hunting became a big business. By 1900 they became extinct from over-harvest and habitat loss.

1.35k views • 91 slides

Chapter 5: Evolution and Community Ecology

Chapter 5: Evolution and Community Ecology. Mr. Manskopf Notes Can Also Be Found at http://www.manskopf.com. Section 1: Evolution. Describe the four primary mechanisms of biological evolution Describe how speciation and extinction affect the diversity of life on Earth.

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1.14k views • 75 slides

Table of Contents

Chapter 41. Reptiles. Table of Contents. Section 1 Origin and Evolution of Reptiles Section 2 Characteristics of Reptiles Section 3 Modern Reptiles. Section 1 Origin and Evolution of Reptiles. Chapter 41. Objectives.

596 views • 52 slides

Why study biodiversity, ecology, and conservation biology? What is biodiversity

983 views • 41 slides

Environment and Society

519 views • 36 slides

Journey to the Center of the Earth

Journey to the Center of the Earth. Scientists that study the Earth. Geologists: Scientists that study the forces that make and shape planet Earth. They study the chemical and physical characteristics of rock.

464 views • 32 slides

AP Biology 2/28/13

AP Biology 2/28/13. Chp.25 ~ Phylogeny & Systematics (& Chp.26~Review the Origin of Life, Dating Fossils). Phylogeny: the evolutionary history of a species. Systematics : the study of biological diversity in an evolutionary context The fossil record :

520 views • 32 slides

Chapter 25

Chapter 25. The History of Life on Earth. Overview: Lost Worlds. Past organisms were very different from those now alive. The fossil record shows macroevolutionary changes over large time scales including The emergence of terrestrial vertebrates The origin of photosynthesis

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Evolution of Australian Biota Topic 12: Understanding Past Environments

Evolution of Australian Biota Topic 12: Understanding Past Environments. Part of the Evolution of Australian Biota Module Biology in Focus, Preliminary Course Glenda Childrawi and Stephanie Hollis. DOT Point.

434 views • 26 slides

Evolution and Adaptation by Natural Selection

Evolution and Adaptation by Natural Selection. A Puzzle. Unity of Life Life arises only from preexisting life (vs. spontaneous generation) All living organisms are composed of one or more cells, and cells come only from other cells

353 views • 25 slides

Ecosystem Diversity

Ecosystem Diversity. 2013-2014. Biodiversity. The variety of species In general, highest around the equator and decreases moving toward the poles. Ecosystems that are highly diverse are typically more stable and able to withstand environmental change. . Mutation.

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Evolution of the Earth and its Atmosphere

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Evolution of the Earth and its Atmosphere

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The Human Life Course and Population

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Cycads Cycas

Cycads Cycas. Maria Garcia Sasha Espinola. Origins. Appeared in fossil record during the Triassic period, 225 million years ago. Because cycads continue to survive they are called living fossils Cycads are not related to ferns or palms Seed bearing plants, classified as gymnosperms

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213 views • 9 slides

Describing Populations

Describing Populations. From 1900 to 2000, the white-tailed deer population of New York state grew from about 20,000 to more than 1 million. Densities of more than 100 deer per sq mi occur in some metropolitan areas. Population Defined.

411 views • 7 slides

What caused the extinction of the dinosaurs?

What caused the extinction of the dinosaurs?.

182 views • 6 slides