1. Ch. 1 Review
A test which determines the effect of a single variable by changing it while keeping all other variables the same.
Controlled Experiment
Change in a group of organisms over time.
Evolution
Logical interpretation based on prior knowledge or experiences.
Inference

2. Ch. 1 Review Use of 1 or more senses to gather data. Observation
Factor in an experiment that a scientist purposely changes.
Independent Variable
Use of 1 or more senses to gather data.
Observation
2 types of data which can be gathered through observations/experiments.
Qualitative & Quantitative

3. Ch. 1 Review
A hypothesis which has been supported by experimental data.
Theory
True or False: Theories are set in stone and can NOT be revised.
False

4. Ch. 1 Review The group that receives the Independent Variable
Experimental Group
The term used to describe the data that is collected through out an experiment.
Dependent Variable
The parts of the experiment that remains unchanged between the experimental group and control group.
Control variables

5. Ch. 1 Review
Smallest unit of an organism that can be considered alive.
Cell
Organized way of using evidence to learn about the natural world.
Science.
Signal to which an organism responds.
Stimulus

6. Ch. 1 Review Process by which a single parent reproduces by itself.
Asexual Reproduction
Mnemonic device to help you recall the “8” characteristics of life.
DR. G. CHEER
Unspecialized Cells that are not differentiated:
Stem Cells

7. Ch. 1 Review Evidence or information gathered from observations. Data
A scientific/educated explanation for a set of observations.
Hypothesis
Science that seeks to understand the living world.
BIOLOGY

8. Ch. 1 Review
A well-tested explanation that unifies a broad range of observations agreed upon by the scientific community.
Theory
Process by which organisms maintain a relatively stable internal environment.
Homeostasis

9. Ch. 1 Review
Group of organisms of one type that live in the same area.
Populations
Populations that live together in a defined area.
Community
The part of Earth that contains all ecosystems.
Biosphere

10. Ch. 1 Review
List AND Explain the 8 Characteristics of Living Things:

11. Characteristics of Living Things
LIVING THINGS SHARE THE FOLLOWING 8 CHARACTERISTICS:
1.) Living things are made up of units called cells.
2.) Living things reproduce. (two types)
3.) Living things are based on a genetic code (DNA).
4.) Living things develop and grow.
5.) Living things obtain and use materials and energy.
6.) Living things respond to their environment.
7.) Living things maintain a stable internal environment. (Homeostasis)
8.) As a group living things change over time (Evolve)
DR. G. CHEER