'400 million years ago' diaporamas de présentation

The Origin and History of Life on Earth

The Origin and History of Life on Earth. What is Life? Life is, to the best of our knowledge to date, unique to our planet Earth. There is no simple definition of Life, except that life forms are able to act on their own behalf to support their own existence, and to reproduce themselves.

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Animal Science

415 views • 35 slides

Animal Science

1.33k views • 34 slides

Predicting Past Climates

Predicting Past Climates. Huzaifa and Shajee. We will talk about:. Predicting Past Climates: Ice Cores Record temperature data by trapping gases such as oxygen, carbon dioxide, methane, and nitrous oxide Dentrochronology

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The Fossil Record

The Fossil Record. Chapter 5. objectives. SPI 0807.5.5 Compare fossils found in sedimentary rock to determine their relative age. I can: Compare fossils found in sedimentary rock to determine their relative age. Identify types of fossils.

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Ichthyes: The Fish

Ichthyes: The Fish. What is a Fish? Aquatic vertebrate, usually with paired fins, scales and gills. -fins for movement -scales for protection -gills for respiration -Very diverse group composed of many classes of fish. -. Evolution of Fish -Fish were the first vertebrates

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Is it an insect, Yes or No?

Andrea Schweim. Is it an insect, Yes or No?. Introduction. The Great Success Story Insects are among the most successful creatures in the living world. They first appeared about 400 million years ago. Some insects have not changed much over the years, like this fossilized dragonfly.

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Unit 5-4: Continental Growth

Unit 5-4: Continental Growth. The Craton. The continents that we are familiar with today have not always been the same. The continents were actually much smaller than they are now. Through tectonic processes, rock has been added to the ancient continental cores.

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How did amphibians, such as frogs, trade their tails for legs?

How did amphibians, such as frogs, trade their tails for legs?. The Tale of the Disappearing Tail. By: Debra Cunningham.

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A Place Called Cades Cove

From Sea to Soil. A Place Called Cades Cove. Presented By Mrs. Kaufmann October 12, 2014. Important Questions. Where is Cades Cove Located? How did Cades Cove come to be? How many people live in Cades Cove? What kind of animals live in Cades Cove? How has Cades Cove changed?.

258 views • 8 slides