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Intro to Biology

Bio 9

TermDefinition
Biology The study of all living things
Cell The smallest structured functional unit of life in an organism
Reproduction All organisms produce new organisms like themselves and transmit hereditary information to offspring (DNA) can be sexual or asexual
Genetic code The information encoded within the genetic material that can be translated into a protein
Metabolism The sum of all chemical reactions that take in and transform energy from the environment.
Grow and develop Growth- The division and enlargement of cells Development- involves cell differences/ specialization
Stumuli A physical or chemical in the internal or external environment.
Homeostasis The maintenance of stable internal conditions in a constantly changing environment.
Evolution Populations of living organisms may evolve through time individuals may change but genetics don't.
Controlled experiment An experiment in which only one variable is manipulated at a time.
Independent variable the cause/treatment for the experiment
Dependent variable The measurement conclusion or effect
Control group test group that doesn't get treatment
Hypothesis Never a question, an if then statement that has no personal pronouns and is based on research
Variables Something in an experiment that can change
Data The information that you can collect in an experiment
Constant Something that stays the same in an experiment
Observation Qualitative or quantitative information that you record in an experiement
Natural selection Organisms have certain favorable traits that allow them to survive and reproduce more than organisms that lack those traits
Prediction Something that you expect to happen during an experiement
Steps of the scientific method 1. Observation 2. Ask a question/identify a problem... 3. Hypothesis- "if.. then..." never a question and based on research- education guess 4. Experiment 5. Communicate information
Why is communication important in science To communicate ideas so that more research can be done.
Characteristics of life 1. Cell organization 2. DNA 3. Response to Stimulus 4. Homeostasis 5. Metabolism 6. Growth and Development 7. Reproduction 8. Evolution
example of organization Cells organize into organ systems
example of DNA A mother has blue eyes and her daughter has blue eyes
Example of stimuli A change of light makes the light dilate
Example of homeostasis Shivering when the body gets cold
Example of metabolism Getting energy from food
Example of growth Growing from baby to toddler
example of evolution Blue eyes
Order of organization Biosphere->Ecosystem->Community->Population->Organism->Groups of Cells->Cells->Molecules
3 themes of biology Diversity and Unity of Life Interdependence of Organisms Evolution of Life
interdependance All organisms live and interact with each other and their environment. Life can be studied at a variety of different levels
Diversity of life Life is diverse yet we are are more similar than we are different Genetic information, biological molecules, structure/organization. All humans are from a single common ancestor
Evolution of life Helps us understand how distinct populations and new species come into existence
Created by: ultra.cora