Biology Classification Flashcards
Ecosystem
- Community of organisms and tier abiotic environments
Biosphere
- Planet earth and all of it’s inhabitants
Abiotic
Non living
Community
- Group of various species that live in the same habitat with eachother.
Population
- Group of organisms of the same species that live in a specific geographical area.
Body system
- Skeletal system
Organ
- Bone
Tissue
- Bone tissue
Cell
- Bone cell, nucleus
Organelles
- Cell parts
Molecules
- Water
Atoms
- Oxygen / hydrogen
Organism/Species
- Group of organisms that are closely related, can mate/produce offspring
3 Domains
Bacteria, Archaea, Eukaria
4 Kingdoms
Protista, Fungi, Plantae, Animalia
Two Cell Types
Prokaryote, Eukaryote
Numbers of cells
Unicellular, Multicellular, Mostly Multicellular
Classification Levels in order
Domain, Kingdom, Phylum, Class, Order, Family, Genus, Species
Bacteria is a _____ celled organism
A one celled organism
Archaea are
Similar to bacteria but have a different chemical structure
Eukarya
Organisms whose cells contain complex structures enclosed within membranes
Protista examples
Algae, slime mold
Fungi example
Mushroom
Plantae example
Plants
Animalia example
Animals
Prokaryote
Any cellular organism that lacks a membrane bound nucleus (simple organisms)
Eukaryote
Any cellular organism that contains a membrane bound nucleus (complex organisms)
Unicellular
Having or consisting of a single cell
How many cells can Protista have?
Unicellular or multicellular
How many cells do fungi have?
Mostly multicellular
How many cells do Plantae have?
Mostly multicellular
How many cells do Animalia have?
Multicellular
Autotroph
An organism able to form nutritional organic substances from inorganic substances like carbon dioxide
Heterotroph
Gets nutritional requirements from complex organic substances (eating)
Are fungi autotrophs or heterotrophs?
Heterotrophs
Are Plantae autotrophs or heterotrophs?
Autotrophs
Are Animalia autotrophs or heterotrophs?
Heterotrophs
What are the 7 properties all living things share?
Cellular organization, homeostasis, metabolism, responsiveness, reproduction, heredity, and growth.
What is the smallest unit capable of all life functions?
A cell
What are cells enclosed in?
Membranes
What is homeostasis?
The maintenance of stable internal conditions in spite of external environment changes.
What does a metabolism do?
Carry out chemical reactions to obtain energy. All energy comes from the sunlight.
What is responsiveness?
Maintaining a stable internal environment, living organisms also respond to external environments.
Define reproduction.
The process by which organisms make more of their own kind from one generation to the next.
What is heredity?
Passes on an organisms traits to their offspring.
What is evolution?
Change in inherited characteristics over time.
Define growth.
Getting bigger/matured. All loving organisms grow. As they grow, must organisms change. That is called development.
What was Redi’s experiment?
He put meat in a jar and covered one, but left the other uncovered. This disproved spontaneous generation because the covered one had no maggots.
What year was Redi’s experiment performed?
1668
Define classification
Grouping of different types of organisms based on similarities in structure and evolutionary relationships.
What did Carolus Linneaus do?
Devised binomial nomenclature
Which of the two names comes first?
Genus , Species
What do you do to a genus name?
Capitalize it and underline.
Define taxonomy:
Science of describing, naming, and classifying organisms
The 3 Domain System is based in the following criteria:
1) Presence or absence of a nuclear membrane. 2) Unicellular versus multicellular. 3) Type of nutrition -autotrophs and heterotrophs -
Characteristics of Archaea:
Most primitive and often love in extreme environments (salt, heat, methane loving) unicellular and no nucleus
Characteristics of bacteria:
primitive cell structure, no organized nucleus or nuclear membrane.
Coccus shape:
Sphere
Bacillus shape:
Tubular
Spirrilum shape:
Corkscrew
Examples of eukarya:
Protista, fungi, Plantae, Animalia
Kingdom Protista Characteristics:
Predominately unicellular organisms with plant/animal like characteristics.
Examples of Kingdom Protista:
Protozoa and all algae.
Kingdom Protista have true:
True nucleus and nuclear membrane.
Most Protista are:
Motile (can move)
Animal-like Protists:
Called Protozoa. Can live in fresh or saltwater, soul, it other bodies of organisms.
Plant like Protists:
Called algae. Contain chloroplast and are autotrophic.