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Chapter 1 Vocab

vocab words 1.1-1.3

TermDefinition
Biosphere all organisms and the part of the earth where they exist
Biodiversity variety of life within an area
Species a group of organisms so similar to one another that they can breed and produce fertile offspring
Biology scientific study of all forms of life
Science the knowledge obtained by observing natural events and conditions in order to discover facts and formulate laws or principles that can be verified or tested
Organism an individual living thing
Cell basic unit life
Metabolism all chemical processes that synthesize or break down materials within the organism
DNA molecule that stores genetics information in all organisms
System changing, organized group of related parts that interact to form a whole
Ecosystem collection of organisms and nonliving things, such as climate soil water and rocks in a area
Homeostasis regulation and maintenance of constant internal conditions in an organism
Evolution change in a species over time process of biological change by which descendents come to differ from their ancestors
Adaption inherited trait that is selected for over time because it allows organisms to better survive in their environment
Observation using the senses to study the world , using tools to collect measurements , examining previous research results
Data observations and measurements recorded during experiments
Hypothesis proposed explanation or answer to a scientific question
Experiment process that tests hypothesis by collecting information under controlled conditions
Independent variable conditions or factor that is manipulated by a scientist experiment
Dependent variable experimental variable data collected through observation and measurement
Constant condition that is controlled so that it does not change during an experiment
Theory proposed explanation for wide variety of observations and experimental results
Created by: Christiana woods
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