Mid Term Review Flashcards
Dependent variable
Part of an experiment you measure.
Independent Variable
Part of the experiment that you control
Steps in the scientific method include
1a: The title- the name of the experiment
1b: Stating the problem- (What, How, Why)
A: what is the experiment supposed to answer?
B:One sentence long, stated in question form.
Hypothesis
An educated guess predicting the outcome of the experiment.
A: Statement should be written: If, then… Format
Develop a control experiment
Only one variable is tested
Control
This variable stays the same during the experiment. It allows you to compare with the experimental data
Experimental
This variable is what you’re testing and comparing with the control.
Procedures
These are the detailed steps that the experimenter must follow in order to complete the experiment. The procedure must be written in detail, so anyone who tries this experiment won’t make any mistakes.
Analysis of data
Read and interpret charts, graphs, and written information.
Independent variable
This is the part that the experimenter controls.
Dependent variable
This is the part that the experimenter measures.
Conclusion
This determines if the experimenter’s hypothesis was supported or not.
What is ecology
The study of how organisms interact (live) with each other and the environment.
This includes
Abiotic (Nonliving) factors
Biotic (Living) factors
Abiotic (Nonliving) factors
Water, space, air, warmth, sunlight
Biotic (living) factors
Bacteria, plants, animals
Living vs. Nonliving
Biologists have created a list of characteristics of life by which we can recognize between living and Nonliving. Some nonliving things possess some of these characteristics of life, but they must possess ALL of theses characteristics to be considered living
Organization
Living things show an orderly structure. All are composed of one or more cells. Each cell contains the genetic material DNA that provides all the information needed to control the organisms life processes.
Reproduction
Living things produce offspring. Organisms don’t live forever they must replace themselves for the survival of their species.
Species
A group of organisms that can interbreed and produce fertile offspring in nature.
Growth
An increase in the amount of living material and the formation of new structures. All organisms grow with different parts of the organism growing at different rates.
Development
All of the changes that take place during the life of an organism
Environment
Organisms live in a constant interface with their surrounding which includes the air, water, weather, temperature, any organism in the area and many other factors.
Stimulus
Anything in an organism’s external or internal environment that causes the organism to react.
Response
A reaction to a stimulus in an organism’s environment. The ability to respond to stimulus in the environment is an important characteristic, of living.
Homeostasis
The ability of the body to maintain an internal stable environment when the external environment is changing
Energy
Is the ability to cause change. Organisms get energy from food. Plants make their own food where as animals, fungi and other organisms get food by eating plants or animals. Organisms maintain homeostasis by using energy.
Adaptation
Any inherited structure, behavior, or internal process that enables an organism to respond environmental factors and live to produce offspring. The gradual change in a species through adaptions over time is called evolution.
Environment
Every biotic (living) and abiotic (nonliving) things that surround an organism.
Levels of organization
Individual-smallest, population, community, ecosystem, biome, biosphere-largest.
Habitat
A specific environment where animals live, it’s their home
Population
All the organisms of a species that live in the same area.