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This 3 page One Day of Notes was uploaded by Bridgett Notetaker on Wednesday January 28, 2015. The One Day of Notes belongs to a course at a university taught by a professor in Fall. Since its upload, it has received 141 views.
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Date Created: 01/28/15
Exploring Life Biology The study of life The Properties of Life Orderhighly ordered structures that function in a certain way are essential to life Reproduction ability of an organism to reproduce its own kind to replace itself when it dies Growth and Development consistent growth and development controlled by inherited DNA Energy use chemical energy to power organism s activities and chemical reactions Regulation keep internal environment in cells controlled to sustain life thermal and chemical Response to Environment ability to respond to outside stimulus Evolutionary Adaptation how organisms adapt over generations with traits best suited to the species ie Survival of the fittest Hierarchy of Organization S 9 gtP Squot3939gtP quot Biosphere all environment on earth that supports life ex earth Ecosystem all organisms in a particular area exFlorida Everglades exall life in the Everglades exAlligators Community array of organisms in an ecosystem Population group of certain species in a community Organism individual member of a population exAmerican Alligators Organ and Organ Systems systems that make up the organism exAlligator s brain Tissue composes organs Cells compose tissue Organelles make up cells the organs within the cell 10 Molecules composed of macromolecules and atoms make organelles Emergent Properties new properties that arise in each step upward in the hierarchy of life Cells are Structural and Functional Units of Life 0 Cells are the level at which life emerges o A cell can regulate internal environment take in and use energy respond to the environment and develop complex organization 0 All cells 0 Have an enclosed membrane that regulates the passage of materials between the cell and its surrounding 0 Use DNA as genetic material Two Basic Forms of Cells 1 Prokaryotic Cells 0 First to Evolve o Simpler and smaller 0 Have cells walls 0 Ex Bacteria 2 Eukaryotic Cells 0 Bigger and more complex 0 Divided membrane 0 Makes up plants animals fungi protists Evolution 0 Unity of life is based on DNA substance of genomes Genes DNA that is inherited by offspring and grouped into chromosomes Genome entire library of genetic instructions that an organism inherits Scientists have determined entire human genome sequences Domains Three higher levels that categorize diversity of life 1 Bacteria 2 Achaea 3 Eukaryoteplantanimal Evolution Explains Life Diversity and Unity Evolution the process of change that has transformed life on earth from the beginning until today Evidence that organisms change over time 1859 Charles Darwin wrote that 0 Living species today descend from a common ancestor with modification 0 Natural selection
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