Basics of Biology Flashcards
(30 cards)
Science
Knowledge acquired in a systematic fashion
Biology
The scientific study of life
Life
The condition that distinguishes organisms from inorganic objects and dead organisms.
Characteristics of All Living Things
Order Homeostasis Growth & Development Energy Utilization Response to the Environment Reproduction Evolution
Order
Complex but ordered organization
Homeostasis
Ability to maintain internal environment despite changes in the external environment
Growth and Development
An increase in size and often number of cells, coming as part of all of the changes that occur from the time the egg is fertilized until death.
Energy Utilization
Obtain and transform energy to carry out life functions.
Response to the environment (stimuli)
Functional activity triggered by external input.
Reproduction
The ability to produce offspring of their own kind.
Evolution
Change of populations over time.
General Organizations of Life - Order
Size
Diversity
Size levels of life
Biosphere - Ecosystem - Community - Population - Organism - Organ System - Organ - Tissue - Cells - Molecule - Atom
Biosphere
Regions of the Earth’s crust, waters, and atmosphere inhabited by living things.
Ecosystem
A community plus the physical environment.
Community
Interacting populations in a particular area
Population
Organisms of the same species in a particular area
Organism
An individual; complex individuals contain organ systems
Organ System
Composed of several organs working together
Organ
Composed of tissues functioning together for a specific task
Cell
The structural and functional unit of all living things
Molecule
Union of two or more atoms of the same or different elements
Atom
Smallest unit of an element composed of electrons, protons, and neutrons
Taxonomy
branch of biology that names and classifies species (based on similarities and differences, generally)
