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Diversity of Life & Human Interaction
Diversity of Life & Human Interaction
Life on Earth is diverse through mechanisms such as evolution and genetic inheritance. While scientists are still learning how the phylogenetic tree is branched we believe all life on Earth can be traced back to an ancient descendant which was a single cell. From that cell over the course of millenia various new species emerged with increased life sustaining abilities each filling a new niche in the environment. Some species are more similar than others and organizing these similarities is the science of taxonomy.
Life on Earth is diverse through mechanisms such as evolution and genetic inheritance. While scientists are still learning how the phylogenetic tree is branched we believe all life on Earth can be traced back to an ancient descendant which was a single cell. From that cell over the course of millenia various new species emerged with increased life sustaining abilities each filling a new niche in the environment. Some species are more similar than others and organizing these similarities is the science of taxonomy.
Domain - Eukarya
(nucleus enclosed by membrane)
Kingdom - Animalia
(multicellular & heterotrophic)
Phylum - Chordata
(have notochord or spine)
Class - Mammalia
(produce milk & have fur)
Order - Artiodactyla
(even toed ungulates)
Family - Camelidae
(camels)
Genus - Llama
(llama suborder)
Species - Guanaco
Class Notes
Class Notes
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Bird Adaptations Lab - (Galapagos Finches)
Bird Adaptations Lab - (Galapagos Finches)
Galapagos Finches
Galapagos Finches
These finches were observed on Galapagos by Charles Darwin. He theorized that a common ancestor arrived on the island in the past and all species diverged from this original.
Various Beak Adaptations
Various Beak Adaptations
Throughout the world birds have adapted through environmental pressure to feed on a variety of fruits, seeds, insects, fish, and other animals.
In the lab we used a variety of basic kitchen utensils to simulate these adaptations. It was interesting trying to determine which beak shape would be best suited for each piece of food. This lab showed us why "species" is the most specific of taxonomy and how adaptations through natural selection lead to variation.
Topic of Interest: Resurrection & Rewilding
Topic of Interest: Resurrection & Rewilding
During class we had a discussion about the idea of bringing back extinct species. Mr. Dellinger shared with us these two videos and it really got me thinking. It seems absolutely crazy that we could possibly bring back the wooly mammoth, however it may be necessary to help reverse climate change. Scientists have a theory that the mammoth would help keep the arctic permafrost frozen by digging up the top layer of snow to find vegetation. This would allow cold air to penetrate deeper into the permafrost making it freeze longer and deeper. Permafrost has a lot of carbon dioxide locked into it and may have ancient froze bacteria and viruses. When the permafrost melts the carbon dioxide is released and the bacteria and viruses may be reanimated increasing global climate change and causing potential pandemics.
Items to Review Before Unit Test
Diversity of Life Vocabulary (Quizlet)
Pre-Test Questions (QUIZIZZ) 85% or better
Taxonomy Worksheet (Paper Notebook)
Cladograms Activity (Binder)
Natural Selection Notes (Paper Notebook)
Bird Adaptations Lab (Paper Notebook)
Diversity of Life Study Guide (Binder)
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