Book 2 - Chapter 1 Flashcards
Organism
Living things
Cell
Basic unit of structure and function in an organism
Unicellular
Single-called organisms
Multicellular
Organisms made up of multiple cells
Metabolism
The combination of chemical reaction through which an organism builds up or breaks down materials
Stimulus
A hanger in an organism’s surroundings that causes the organism to react
Response
An action or change in behavior
Development
The process of change that occurs during an organism’s life, producing a more complex organism
Asexual reproduction
Only one parent produces offspring
Sexual reproduction
2 parents that combine their genetic material to produce offspring
Spontaneous generation
The mistaken idea that living things can arise from nonliving sources
Controlled experiment
A scientist carries out a series of tests that are identical in every respect except for 1 factor
Autotrophs
Organism that produces own food
Heterotrophs
Organisms that cannot produce their own food
Homeostasis
The maintenance of stable internal conditions
Classification
The process of grouping things bases on their similarities
Taxonomy
The scientific study of how organisms are classified
Binomial nomenclature
The classification system in which each organism is given a unique two-part scientific name indicating its genus and species
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 produce
