Chapter 1-Invitation to Biology Flashcards
Characteristic of a system that does not appear in any of its component parts
Emergent property
Put these in order of Life's Organization: Molecule Atom Multicelled organism Cell Organ system Tissue Organ Ecosystem Biosphere Population Community
Atom Molecule Cell Tissue Organ Organ system Multicelled organism Population Community Ecosystem Biosphere
Most basic unit of life
Cell
What are the 3 key requirements for all living things?
Energy and nutrients
Homeostasis
Use of DNA as hereditary material
Substances that organisms need but can not make for themselves
Nutrients
Organisms that make their own food
Producers
Organisms that acquire energy and nutrients by feeding on other organisms
Consumers
The process by which organisms keep their internal conditions within tolerable ranges
Homeostasis
Amount of variation among living organisms
Biodiversity
A system to group different organisms into distinct categories
Taxonomic classification
A prokaryote lacks/has a nucleus
Lacks
A eukaryotes lacks/has a nucleus
Has
Bacteria and archea are prokaryotes/eukaryotes
Prokaryotes
Eukarya is a prokaryote/eukaryote
Eukaryote
A diverse group of simple eukaryotes (have nucleus)
Protists
Ex:
•Animals(multicellular consumers)
•Plants(multicellular photosynthetic producers)
•Fungi(single or multi-celled euka. Consumers)
Unique type of organism
Species
The science of naming and classifying species. Identifies each organism with a unique two-part scientific name
Taxonomy
Name the 8 taxonomic classifications from most to least diverse
Domain Kingdom Phylum Class Order Family Genus Species
(Did King Phillip Come Over From Great Spain?)
Scientific names are always ________ or _________, and the genus is capitalized, but the _________ is not
Italicized; capitalized; species
What are the 5 steps of the scientific method?
- Observe
- Think of an explanation (Hyp.)
- Test the Hypothesis
- Decide
- Report
A testable explanation of a natural phenomenon
Hypothesis
The difference between results obtained from a subset, and results from the whole
Sampling error
A result is very unlikely to have occurred by chance (typically
Statistically significant
A hypothesis that has not been disproven after many years of rigorous testing
Scientific theory
