CHARACTERISTICS OF LIFE

• Humans are organism that share characteristics with other organism

  true
• most important common feature of all organism is

  life
• 6 essential characteristics of life

  organization, metabolism, responsiveness, growth, development, reproduction
• refers to the specific interrelationship among the individual parts of an organism, and how those parts interact to perform specific functions

  organization
• living things are highly organized


  true
• all organisms are composed of one or more cells.

  true
• _ depends on the precise organization of large molecules.

  cellular function
• disruption of this organized state can result in loss of functions

  true
• ability to use energy to perform other vital functions such as growth, movement, and reproduction

  metabolism
• human cells possess specialized proteins that can break down food molecules to use as a source of energy.


  true, metabolism
• organism's ability to sense changes in the external or internal environment and adjust to those changes.

  responsiveness
• _ include actions such as moving toward food or water and moving away from danger or poor environmental conditions such as extreme cold or heat

  responses
• organisms can also make adjustments that maintain their internal environment

  true
• refers to an increase in the size or number of cells, which produces an overall enlargement in all or part of an organism, cell size, or the amount of substance surrounding cells. ex. bones grow when the number of bone cells increases and the bone cells become surrounded by mineralized materials.

  Growth
• includes the changes an organism undergoes through time, beginning with fertilization and ending at death.

  Development
• usually involves, growth but it also involves differentiation

  development
• involves changes in a cell's structure and function from an immature, generalized state to a mature, specialized state.

  differentiation
• following fertilization immature cells differentiate to become specific types of cells, such as skin, bone, muscle, or nerve cells

  true
• formation of new cells or new organisms.

  reproduction
• _ of cells allows for growth and development.

  reproduction
• formation of new organisms prevents extinction of species


  true
•   - functional interrelationships between parts

  organization
•   -  sum of all chemical and physical changes

            sustaining an organism

  metabolism
• -  ability to acquire and use energy in support of

            these changes

  metabolism
• :

    - ability to sense and respond to environmental changes 

  responsiveness
• • includes both internal and external environments

  responsiveness
•   - can increase in size

  growth:
•      - size of cells, groups of cells, extracellular

                materials

  growth
• :

    - changes in form and size

  development
• • changes in cell structure and function from

           generalized to specialized -

   

  differentiation
•   - formation of new cells or new organisms


  reproduction:
•      - generation of new individuals

  reproduction
•      - tissue repair

  reproduction