Chapter 1 Section 1-4 Flashcards
The study of living organisms
Biology
All organisms and the part of Earth where they exist
Biosphere
Variety of life within an area
Biodiversity
Any individual living thing
Organism
All chemical processes that synthesize or break down material within an organism
Metabolism
Basic unit of life
Cell
Group of organisms so similar to one another that they can breed that they can breed and produce fertile offspring
Species
Molecule that stores genetic information in all organisms
DNA (deoxyribonucleic acid)
Species
Orchid, moray eel, honeypot ant, polar bear
Changing, organized group of related parts that interact to form a whole
System
Collection of organisms and nonliving things such as climate, soil, and rocks in an area
Ecosystem
Regulation and maintenance of a constant internal conditions in an organism
Homeostasis
Change in species over time
Evolution
Inherited trait that is selected over time for organisms to survive in their environment
Adaptation
Using the senses to study the world, using tools to collect measurements examining previous research results
Observation
Proposed explanation or answer to a scientific question
Hypothesis
Observations and measurements recorded during an experiment
Data
Process that tests a hypothesis by collecting information under controlled conditions
Experiment
Condition or factor manipulated by a scientist during an experiment
Independent variable
Experimental data collected through observation and measurement
Dependent variable
Condition that is controlled so that it does not change during an experiment
Constant
Proposed explanation for wide variety of observations and experimental results
Theory
Tool that provides an enlarged image of the object
Microscope
Specific region of DNA that codes for a particular protein
Gene