1. Evolution
BIOLOGY

2. Biology
Unit one

3. What is biology?
The study of “LIFE”
Bio = life
-logy = study of

4. CHARACTERISICS OF LIFE
Cells: all living things are made up of one or more cells.
All living things can Reproduce.
Sexual Reproduction: Provides variation in offspring / two parents
Asexual Reproduction: No variation – offspring are “clones” of parent / one parent

6. Sexual Vs Asexual Reproduction
                                                                               

7. Characteristics of Life … cont.
Metabolism: must be able to take in energy, use energy (to grow, move, think, etc.)
Anabolism: Building up (eating / gaining muscle mass)
Catabolism: Breaking down (converting food to energy)

9. Evolution: change in the inherited traits of a species over time.
Homeostasis: “biological balance” (respond to changes in environment – to survive)
Heredity: All living things pass on traits (characteristics) to their offspring:
Genes – sets of instructions passed from parents to offspring.
Evolution: change in the inherited traits of a species over time.
Natural Selection “strong survive & reproduce”.

14. Interdependence: Each organism in a community learn to live and interact with others in their community.
Ecology – study of interactions of living things with the environment.

15. Sexual or Asexual?

17. Vocabulary – Chapter 1
Biodiversity: The variety of life; species are “diverse”
Biology: The study of all life forms
Biosphere: All living things and the places they are found on Earth

18. Cell: The basic ‘unit’ of life
DNA: Genetic material in chromosomes, passed on to offspring
Metabolism: A chemical process that breaks down food and builds up (muscle) for example

19. Organism: Any individual living thing
Species: Living thing that can reproduce and interbreed
Adaptation: An inherited trait that gives an advantage to offspring
Biotechnology: Using modern equipment to help scientists (ex: CSI)

20. Constant / Control Group: When doing an experiment, the condition are kept the same (no change)
Dependent Variable: Variable that is measured and goes on the “y” axis.
Evolution: A change in living things over time, may change the genetics of a species
Gene: A segment of DNA that stores genetic information

21. Genomics: Study and comparison of genomes (DNA) within and across species
Homeostasis: “Biological Balance”
Independent Variable: A condition that the scientist changes
Microscope: Scientific equipment that magnifies things
Transgenic: An organism that has been changed (genetically); usually has another type of DNA other that its own.