Bio 1201 Chapter 1 -

Bio 1201 Chapter 1 - - Chapter 1 – Exploring Life...

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Unformatted text preview: Chapter 1 – Exploring Life Properties of Life 1.1.1 • About 1.8 million species have been identified and named!! • With so many different species there are many unifying similarities (see fig 1.2). I. I. Life contains an order of structural levels with each level building on the levels beneath it A. Hierarchy of biological organization (see fig. 1.3) • 1. Biosphere – the first signs of life we see; the top of the forests; land, bodies of water… • 2. Ecosystems – Abundance of deciduous trees; consists of all the living things in an area along with nonliving components-soil, water, gases, and light, which combined make up the biosphere • 3. Communities – array of organisms staying in an ecosystem is a biological community; Forests: many kinds of trees and other plants, diversity of animals, mushrooms, and other fungi, and large numbers of microorganisms – each of these forms are called species • 4. Populations – all the individuals of a species living within the bounds of a specified area • 5. Organisms – individual living things; • 6. Organs and organ systems – the architecture of more complex organisms; human organs – brain, heart, and kidney, which work together to perform specific functions; not present in prokaryotes or all eukaryotes • 7. Tissues – makes up the outside of the leaf; each kind of tissue is a group of similar cells; not present in prokaryotes or all eukaryotes7....
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Bio 1201 Chapter 1 - - Chapter 1 – Exploring Life...

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