Bio Test 1 2
Terms
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- Scientific Method
- a systematic process that is used to gain knowledge about a specific natural phenomena
- The Scientific Method is...
- reliable, consistent, NON-arbitrary, and minimizes bias
- Scientific Method is SOR - SYSTEMATIC
- a series of steps must be followed (like a recipe)
- Scientific Method is SOR - OBJECTIVE
- the process must be free of personal bias
- Scientific Method is SOR -REPEATABLE
- by the experimenter his/herself or by another who follows the same process
- Steps of SM: Ophedd - OBSERVATION
- physical observatuibs, based on literature reviews
- Steps of SM: oPHedd - PROBLEM & HYPOTHESIS
- Identify a problem, formulate a hypothesis
- Types of Hypothesis - NON-DIRECTIONAL
- A =/ B
- Types of Hypothesis - DIRECTIONAL
- A > B or B > A
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Types of Hypothesis -
NULL - A = B
- Steps of SM: ophEdd - EXPERIMENT
- Prediction, Design an experiment
- Steps of SM: opheDd - DATA ANALYSIS
- Stats, find the avg, st. dev, is data significant?
- Independent Variable
- Variable that the scientist controls/manipulates (the treatment)
- Dependent Variables
- Dependent upon the experimental treatment
- Control Group
- Goes through all the experimental steps but does not recieve the treatment being tested
- Experimental Group
- Goes through same steps as control group AND recieves the treatment being tested
- All Living things are ORGANIZED
-
Organisms
Organ Systems
Organs
Tissues
Cells
Molecules
Atoms - Tissue
- a group of cells with a similar function
- Cell
- Smallest structural and functional unit of living things
- Population
- all the members of a species that occupy a certain area
- Community
- a population of species that live in the same area
- Ecosystem
- Biological Community
- Asexual Reproduction
- One cells divides into two identical cells
- Energy
- The capacity to do work
- Obtaining Energy through either:
- Photosynthesis or food consumption
- Stimulus
- A change in the environment that we can detect and respond to
- Minimizing energy, obtaining food, and reproducing are challenged by...
- environmental chanes
- Adaptation
- Modifications in how we live in our environment
- Evolution
- process by which a species changes through time