Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
32 Cards in this Set
- Front
- Back
Adaptation
|
Inherited characteristic that improves an organism’s ability to survive and reproduce in a particular environment
|
|
Biosphere
|
All the parts of the planet that are inhabited by living things; sum of all Earth’s ecosystems
|
|
Cell
|
Basic unit of living matter; separated from its environment by a plasma membrane
|
|
Consumer
|
Organism that obtains food by eating producers (autotrophs) or other consumers
|
|
DNA
|
(deoxyribonucleic acid) Molecule responsible for inheritance; nucleic acid that contains the sugar deoxyribose
|
|
Domain
|
Broadest category used to classify life forms
|
|
Ecosystem
|
Community of living things plus the nonliving features of the environment that support them
|
|
Eukaryotic Cell
|
Cell with a nucleus (surrounded by its own membrane) and other internal organelles
|
|
Evolution
|
Generation-to-generation change in the proportion of different inherited genes in a population that accounts for all of the changes that have transformed life over an immense time
|
|
Gene
|
Unit of inherited information in DNA
|
|
Homostasis
|
Internal stability or “steady state” maintained by the body
|
|
Multicellular
|
Consisting of many cells
|
|
Natural Selection
|
Process by which individuals with inherited characteristics well-suited to the environment leave more offspring than do other individuals
|
|
Organism
|
Living thing
|
|
Photosynthesis
|
Process by which plants use the sun’s energy to convert water and carbon dioxide into sugars
|
|
Population
|
Group of individuals of the same species living in a particular area at the same time
|
|
Producer
|
Organism that makes its own food (autroph) and produces organic molecules that serve as food for other organisms in its ecosystem
|
|
Prokaryotic Cell
|
Cell lacking a nucleus and most other organelles
|
|
Species
|
Distinct form of life
|
|
System
|
Complex organization formed from a simpler combination of parts
|
|
Unicellular
|
Consisting of a single cell
|
|
Controlled Experiment
|
Experiment that tests the effect of a single variable
|
|
Data
|
Recorded observations or items of information
|
|
Evidence
|
Collected body of data from observations and experiments
|
|
Generalization
|
General conclusion
|
|
Hypothesis
|
Suggested, testable answer to a well-defined scientific question
|
|
Inference
|
Logical conclusion based on observations
|
|
Model
|
Physical, mental, or mathematical representation of how people understand a process or an idea
|
|
Observation
|
Use of the senses to gather and record information about structures or processes in nature
|
|
Technology
|
Application of scientific understanding for a specific purpose
|
|
Theory
|
Well-tested explanation that makes sense of a great variety of scientific observation
|
|
Variable
|
Any factor in an experiment that is not constant (any factor that can change)
|