1.4 Big Idea 3: Info Storage, Transmission, and Response

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1. All forms of life has the ability to reproduce

   1. life only comes from life

   2. organisms can make another organism like itself

      1. bacteria, protists, and other single-celled life simply split in two

      2. multicellular organisms use reproductive processes using sperm and egg

   3. stages of development are the processes to develop an adult form of an organism

2. During reproduction, genes (genetic information) are passed onto the next generation

   1. genes contain the chemical code DNA (deoxyribonucleic acid) 

      1. blueprint or instructions for the organization and metabolism of an organism

      2. all cells within a multicellular organism contain the same genes

      3. differences of DNA exists between and within the same species

         1. example: humans are different than chimpanzees (between species)

         2. example: there are differences among humans (between individual human beings)

         3. differences are caused by mutations within the genetic information

            1. leads to the various traits seen among individual organisms of the same species

            2. leads to the large diversity among the living organisms on Earth

3. Living organisms interact with the environment and with other organisms

   1. movement in reaction to something in the environment

      1. plants orient their leaves to capture solar energy

      2. animals evade predators

   2. organism behavior helps to ensure survival

      1. examples:

         1. maintain homeostasis (some organisms need to seek preferred environments)

         2. compete for energy sources

         3. acquiring nutrients

         4. seeking shelter

         5. finding mates 

4. Adaptations are modifications that make an organism better able to function in a particular environment