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Biology Chapter 1
chapter 1
29
Biology
9th Grade
09/15/2009

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Term
Botany
Definition
The study of PLANTS.
Term
Anatomy
Definition
The study of internal and external structures of organisms.
Term
Biochemistry
Definition
The study of the chemical make up and process of life.
Term
Cytology
Definition
The study of CELLS.
Term
Ecology
Definition
The study of the interaction between organisms and their environment.
Term
Microbiology
Definition
The study of microscopic unicellular organisms.
Term
Zoology
Definition
The study of ANIMALS.
Term
Genetics
Definition
The study of heredity and inheritance.
Term
Atom
Definition
The building blocks of ALL matter!
Term
Element
Definition
Chemically pure particles; atoms of all the same substance. (C,H,O,N,S,P)
Term
Molecule
Definition
Different elements joined together to make a new chemical substance.
Term
Organelle
Definition
Structures that perform functions for a cell.
Term
Cell
Definition
The smallest unit of life!
Term
Tissue
Definition
Groups of similar cells that perform a common function. (Muscles, nerve)
Term
Organ
Definition
Groups of similar tissues that perform a common function. (Liver, lungs, heart)
Term
System
Definition
Groups of simlar organs involved in a common purpose (Respratory, Digestive)
Term
Organism
Definition
A multicellular living thing containing tissues, organs, etc. Unicellular organisms (1 cell) are the simplist forms of life.
Term
Populations
Definition
Groups of organisms of the same species that can interbreed and live in a particular place and time.
Term
Community
Definition
Different populations that live in the same area and interact with each other.
Term
Ecosystem
Definition
The community of living things AND the physical environment (climate, terrain, etc)
Term
Biome
Definition
A large geographic area with similar forms of life, a group of ecosystems (desert, tundra)
Term
Biosphere
Definition
ALL life supporting environments (biomes)on Earth and the organisms contained in them.
Term
The Scientific Method
Definition
Ways to gather information.
Term
Observe/Define the problem
Definition
Use the 5 senses to make observations and raise questions. State a clear question to be answered.
Term
Collect Data
Definition
Gather all information to try and answer the question. (observing, measuring, sampling, organizing)
Term
Form a Hypothesis
Definition
A statement that PREDICTS the results and CAN BE TESTED!! (educated guess) IF, THAN statement
Term
Perform an experiment
Definition
Test the Hypothesis. A CONTROLLED experiment has a control group and an experimental group. Only one variable should change.
Term
Make Observations/Record Results
Definition
Record all observations/measurements in charts, tables, graphs, diagrams, and narratives.
Term
Draw Conclusions
Definition
The hypothesis is proved, disproved or modified. A THEORY is formed when a hypothesis is supported by lots of evidence and has been tested MANY times.
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