'Bodied organisms' diaporamas de présentation

Paleozoic Life History: Vertebrates and Plants

Chapter 13 . Paleozoic Life History: Vertebrates and Plants. Tetrapod Footprint Discovery . Tetrapod trackway at Valentia Island, Ireland These fossilized footprints which are more than 365 million years old are evidence of one of the earliest four-legged animals on land.

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Paleozoic Life History: Invertebrates

Chapter 12 . Paleozoic Life History: Invertebrates. Burgess Shale. Diorama of the environment and biota of the Phyllopod bed of the Burgess Shale, British Columbia, Canada. Burgess Shale Soft-Bodied Fossils . On August 30 and 31, 1909, Charles D. Walcott,

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Paleozoic Life History: Invertebrates

Chapter 12 . Paleozoic Life History: Invertebrates. Burgess Shale. Diorama of the environment and biota of the Phyllopod bed of the Burgess Shale, British Columbia, Canada algae sponges among others. Burgess Shale Soft-Bodied Fossils . On August 30 and 31, 1909, Charles D. Walcott,

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PowerLecture: Chapter 24

PowerLecture: Chapter 24. Principles of Evolution. Learning Objectives. Understand how variation occurs in populations and how changes in allele frequencies can be measured.

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Chapter 16: The Theory of Evolution

Chapter 16: The Theory of Evolution. 1. What is Evolution?. Evolution is the process by which species change over time. 2. Charles Darwin is the English naturalist who studied the diversity of life and proposed a broad explanation for evolution

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Critters of the Chesapeake Bay

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Critters of the Chesapeake Bay

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Geologic History

Geologic History. Fossils and the Past. A fossil is the preserved remains or evidence of life. In megalodon sharks, only the teeth are found as fossils, dating 10 to 70 millions years old. Wooly Mammoth Teeth. Wooly Mammoth Tusk.

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Geologic Time

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Biodiversity

Biodiversity. How has the diversity of multicellular life changed over time?. Multicellular life started from only one kind and is now many kinds, so, duh. Yes, the number of different kinds of organism must have increased over time.

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Developing a Theory to Explain Change: further evidence of evolution

Pages 126 - 133. Developing a Theory to Explain Change: further evidence of evolution. Evidence of Evolution . 1. The fossil record 2. Transitional fossils 3. Patterns of distribution 4. Anatomy 5. Embryology 6. Molecular biology 7. Genetics.

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Phylum within Kingdom Animalia

Phylum within Kingdom Animalia. Prorifera. Multicellular with little or no tissue organization. No segmentation No backbone. Body is in the form of a sac-like structure consisting of three layers -The cavity of this sac is called the spongocoel. Commonly referred to as Sponges.

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Leatherback Turtle

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Leather back turtle

Leather back turtle. About them. The leatherback sea turtle is the largest sea turtle . It can grow up to 6.5 feet (2 m) long and weigh 1,400 pounds (636 kg). The leatherback gets its name from its shell, which is like a thick leathery skin , with the texture of hard rubber. .

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