• 7th Grade Life Science Georgia Performance Standards

     

    S7L1. Students will investigate the diversity of living organisms and how they can be compared scientifically.

    a. Demonstrate the process for the development of a dichotomous key.

    b. Classify organisms based on physical characteristics using a dichotomous

         key of the six kingdom system (archaebacteria, eubacteria, protists, fungi,

         plants, and animals).

     

    S7L2. Students will describe the structure and function of cells, tissues, organs, and organ systems.

    a.  Explain that cells take in nutrients in order to grow and divide and to make

         needed materials.

    b.  Relate cell structures (cell membrane, nucleus, cytoplasm, chloroplasts,

         mitochondria) to basic cell functions.

    c.  Explain that cells are organized into tissues, tissues into organs, organs into systems, and systems into organisms.

    d.  Explain that tissues, organs, and organ systems serve the needs cells have

         for oxygen, food, and waste removal.

    e.  Explain the purpose of the major organ systems in the human body (i.e.,digestion, respiration, reproduction, circulation, excretion,

          movement, control, and coordination, and for protection from disease).

     

    S7L3. Students will recognize how biological traits are passed on to successive generations.

    a.     Explain the role of genes and chromosomes in the process of inheriting a

           specific trait.

    b.     Compare and contrast that organisms reproduce asexually and sexually

     (bacteria, protists, fungi, plants & animals).

    c.      Recognize that selective breeding can produce plants or animals with

     desired traits.

     

    S7L4. Students will examine the dependence of organisms on one another and their environments.

    a. Demonstrate in a food web that matter is transferred from one organism to

        another and can recycle between organisms and their  environments.

    b. Explain in a food web that sunlight is the source of energy and that this

         energy moves from organism to organism.

     c. Recognize that changes in environmental conditions can affect the survival

         of both individuals and entire species.

    d. Categorize relationships between organisms that are competitive or mutually beneficial.

    e. Describe the characteristics of Earth’s major terrestrial biomes (i.e. tropical rain forest, savannah, temperate, desert, taiga, tundra, and mountain) and aquatic communities (i.e. freshwater, estuaries, and marine).

     

    S7L5. Students will examine the evolution of living organisms through inherited characteristics that promote survival of organisms and the survival of successive generations of their offspring.

    a.      Explain that physical characteristics of organisms have changed over

     successive generations (e.g. Darwin’s finches and peppered moths of Manchester).

    b.     Describe ways in which species on earth have evolved due to natural selection.

    c.      Trace evidence that the fossil record found in sedimentary rock

     provides evidence for the long history of changing life forms.