7 Unifying Themes of Biology
The Properties of Life
Reproduction
Metabolism
Cellular Structure and Function
- Reproduction- the process by which organisms make more of their own kind from one generation to the next.
- Since organisms do die, reproduction is a essential part of life.
- Metabolism- is the sum of all the chemical reactions carried out in an organism.
- Living organisms carry out many chemical reactions in order to get and use energy that is captured in sunlight.
- Almost all of the energy used by an organism is captured from sunlight.
Homeostasis
- All things are made up of one or more cells.
- Cells- Cells are highly organized, tiny structures with thin coverings called membranes.
- A cell is the smallest unit capable of all lifes functions.
Biology
- All living organisms must maintain a stable internal environment in order to function properly.
- The maintenance of stable internal conditions despite external conditions is called homeostasis.
- An organism that cannot maintain internal body conditions would not survive.
Evolution
Interdependence
Heredity
- The organisms in a biological environment live and interact with eachother as shown in the picture.
- Ecology is the branch of biology that studies these interactions with eachother.
- Change in the inherited characteristics of species over generations is called evolution.
- A species is a group of genetically similar that can produce fertile offspring.
- Natural selection is a term used by Charles Darwin that is for the process in which organisms with certian traits are more likely to survive then others.
- Biology is the study of life and living organisms.
- There are 7 properties of life.
- Cellular Organization
- Reproduction
- Metabolism
- Homeostasis
- Heredity
- Responsiveness
- Growth and development
- Heredity is the passing on of characteristics from one generation to the next.
- Heredity is the reason why offspring look similar to their parents.
- Gene- this is the basic unit of heredity.
- Sometimes damage causes the gene to change and this is called a mutation.
Works Cited
- "How Cells Work." HowStuffWorks. N.p., n.d. Web. 22 Jan. 2013
- Johnson, George B., and Peter H. Raven. "Biology and You." Holt Biology. Orlando, Fl.: Holt Rinehart and Winston, 2004. N. pag. Print.
- "What Is Metabolism?" What Is Metabolism? N.p., n.d. Web. 22 Jan. 2013
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