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Biology = the study of life Bios = life | ology = study of

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kamran
11 diapositives · 303 Views · Jul 18, 2014

1.3 Studying Life Downloaded from http ://www.biologycorner.com/bio1/notes_ch1.html#.U0Fq6q1dU08 April 6, 2014. Biology = the study of life Bios = life | ology = study of. 8 Characteristics. The cell - the smallest unit of life Unicellular = 1 celled Multicellular =many celled.

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  1. 1.3 Studying LifeDownloaded from http://www.biologycorner.com/bio1/notes_ch1.html#.U0Fq6q1dU08 April 6, 2014 Biology = the study of life Bios = life | ology = study of

  2. 8 Characteristics • The cell - the smallest unit of life Unicellular = 1 celled Multicellular =many celled

  3. 2. Reproduction Sexual = DNA from 2 different parents Asexual = single parent (cloning, budding)

  4. 3. Genetic Code – directions for inheritance (DNA)

  5. 4.  Growth and Development Growth = getting larger Development = changing shape and structure Differentiation = cells look different and perform different functions

  6. 5.  Use Energy Metabolism = chemical reactions in the body Animals eat to obtain energy  Plants photosynthesize

  7. 6. Response to environment Stimulus = a signal received by one of the senses Response = a reaction

  8. 7.  Internal Balance • Homeostasis – Biological homeostasis is the ability of the body to maintain relative stability and function even though drastic changes may take place in the external environment or in one portion of the body1 8. Evolution - species change over time 1 http://www.eoearth.org/view/article/150655/ downloaded April 7, 2014

  9. Branches of Biology Zoology = animals Paleontology = ancient life Cytology = cells Botany = plants Entomology = insects You guess… Microbiology = Ecology = Anthropology =

  10. Levels of Organization Molecule Cell Tissue Organ Organ Systems Organisms Population Community Ecosystem Biosphere

  11. CHECK FOR UNDERSTANDING 1. There are _________ characteristics of life 2. The smallest unit of life is the ___________ 3. All living things must be able to ____________________, or to make more of their own kind. 4. All living things have a _____________________, which are like instructions for building the body 5. During development, some cells become liver cells, some become skin cells and some become muscle cells. This process is called ________________________ 6. Animals get their _______________ by consuming food. Plants get it by __________________________________ 7. __________________________ is the maintaining of an internal balance, or sameness 8. ______________________ is the process where species change over time.