Intro To Living Things; 2nd Book Flashcards
(36 cards)
Organism
Some living thing
Cell
Basic unit of structure and function in an organism
Unicellular
Single-celled organisms, like bacteria
Multicellular
Organisms that are composed of many cells
Metabolism
Combination of chemical reactions through which an organism builds up or breaks down materials
Stimulus
A change in an organisms surrounding that causes the organism to react
Response
An action or a change in behavior
Development
The process of change that occurs during an organisms life, producing a more complex organism
Asexual Reproduction
Involves only one parent and produces offspring that are identical to the parent
Sexual Reproduction
Involves two parents and combines their genetic material to produce a new organism that differs from both parents
Spontaneous Generation
The mistaken idea that living things can arise from non living sources
Controlled Experiment
Scientist carries out a series of tests that are identical in every respect except for one factor
Autotroph
Organisms that make their own food
Heterotroph
Organisms that cannot make their own food
Homeostasis
The maintenance of stable internal conditions
Classification
Process of grouping things based on their similarities
Taxonomy
The scientific study of how organisms are classified
Binomial Nomenclature
“Two Names”
Genus
A Classification grouping that contains similar, closely related organisms
Species
A group of similar organisms that can mate with each other and produce offspring that can also mate and reproduce
Prokaryotes
Unicellular organisms whose cells lack a nucleus
Nucleus
A dense area in a cell that contains nucleic acids
Eukaryotes
Organisms with cells that contain nuclei
Protist
Eukaryotes that can’t be classified as animals, plants or fungi