Biology-ch1pp

Biology-ch1pp - CHAPTER 1: An Introduction to Life On Earth...

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CHAPTER 1: An Introduction to Life On Earth
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Defining Life Dictionary definition of life is: that the quality that distinguishes a vital and functioning being from a dead body. living things are more than the sum of their parts
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Characteristics defining LIFE 1. structure is complex 2. acquire materials and energy directly from the environment 3. Maintain internal conditions 4. growth 5. respond to stimuli 6. reproduce 7. capacity
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Living Things Are Both Complex and Organized
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Living Things Are Both Complex and Organized
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Living Things Are Both Organized and Complex
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Salt(nonliving) Ocean(nonliving) Water Flea(living) Living Things Are Both Organized and Complex
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Least complex Most complex 0 Biosphere Ecosystem Community Multicellular Organism Organ System Organ Tissue Cell Organelle Molecule Subatomic Particle Atom That part of Earth inhabited by living organisms; includes both the living and nonliving components A structure usually composed of several tissue types that form a functional unit A community together with its nonliving surroundings Two or more populations of different species living and interacting in the same area An individual living thing composed of many cells Two or more organs working together in the execution of a specific bodily function A group of similar cells that perform a specific function The smallest unit of life A structure within a cell that performs a specific function A combination of atoms The smallest particle of an element that retains the properties of that element Particles that make up an atom carbon nitrogen oxygen hydrogen proton neutron electron DNA glucose water mitochondrion nucleus chloroplast nerve cell nervous tissue the brain the nervous system Earth's surface snake, antelope, hawk, bushes, grass, rocks, stream snake, antelope, hawk, bushes, grass herd of pronghorn antelope pronghorn antelope Population Members of one species inhabiting the same area Species Very similar, potentially interbreeding organisms LEVELS OF BIOLOGICAL ORGANIZATION
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O H H CH 2 OH Subatomic Subatomic Electron Electron Neutron Neutron Proton Proton Nitrogen Nitrogen Carbon Carbon Hydrogen Hydrogen Oxygen Oxygen DNA DNA Glucose Glucose Water Water Nucleus Nucleus Chloroplast Chloroplast Mitochondrion Mitochondrion Nerve Cell Nerve Cell Atomic Atomic Molecular Molecular Organelle Organelle Cellular Cellular Least complex Most complex 0 LEVELS OF BIOLOGICAL ORGANIZATION
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Tissue Tissue Nervous Nervous Tissue Tissue Brain Brain Nervous Nervous System System Pronghorn Pronghorn Antelope Antelope Organ Organ Organ System Organ System Organism Organism Least complex Most complex 0 LEVELS OF BIOLOGICAL ORGANIZATION
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Population Herd of Pronghorns Herd of Pronghorns Hawk Hawk Water Water Earth Earth ’s ’s surface surface Community Community Ecosystem Ecosystem Biosphere Biosphere Pronghorns Pronghorns Hawk Hawk Grass Grass Pronghorns Pronghorns Snake Snake Bushes Bushes Soil Soil Air Air Snake
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Biology-ch1pp - CHAPTER 1: An Introduction to Life On Earth...

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