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Bio Ch 1 Terms

Penn Foster Bio Ch 1 Terms

TermDefinition
Adaptation "organism's modification in structure, function, or behavior suitable to the environment"
Animal "multicellular, heterotrophic organism belonging to the animal kingdom"
Binomial Name "scientific name of an organism, the 1st part of which designates the genus, and the 2nd part of which designates the specific epithet"
Biodiversity "total number of species, the variability of their genes, and the communities in which they live"
Bioethics the branch of ethics concerned with the development and implementation of biological technology
Biology scientific study of life
Biosphere "zone of air, land, and water at the surface of the Earth in which organisms are found"
Cell smallest unit that displays the properties of life
Class a taxa used to group species; above order
Community assemblage of populations interacting with one another in the same environment
Conclusion statement made following an experiment as to whether/not the result supported the hypothesis
Control Group sample that goes through all the steps of an experiment but does not contain the experimental variable being tested
Data facts/info collected through observation and/or experimentation
Domain largest taxa used by taxonomists to groups species
Domain Archea "1 or 3 domains of life; contains prokaryotic cells that often live in extreme habitats and have unique genetic, biochemical, and physiological characteristics."
Domain Bacteria "1 or 3 domains of life; contains prokaryotic cells that differ from Archea because they have unique genetic, biochemical, and physiological characteristics"
Domain Eukarya 1 or 3 domains of life; consisting of organism with eukaryotic cells and further classified into kingdoms
Ecosystem biological community together with associated abiotic environment
Energy capacity to do work and bring about change
Evolution "descent of organisms from common ancestors, with the development of genetic and phenotypic changes over time that make them more suited to the environment"
Experiment series of actions undertaken to collect data with which to test a hypothesis
Experimental Design artificial situation devised to test hypothesis
Experimental Variable a condition of an experiment that is deliberately changed
Extinction total disappearance of a species/ higher group
Family one of the taxa used by taxonomist to group species; above genus
Fungus saprotrophic decomposer
Gene unit of heredity existing as alleles on the chromosomes
Genus taxa used to categorize species; contain those most closely related through evolution
Homeostasis maintenance of normal internal conditions in a cell an organism by means of self-regulating mechanisms
Hypothesis supposition established by reasoning after consideration of available evidence
Inductive Reasoning using specific observation and the process of logic and reasoning to arrive at a hypothesis
Kingdom taxa used to categorize species; above phylum
Law principle
Metabolism all of the chemical reactions that occur in a cell during growth and repair
Model simulation of a process; a hypothesis that describes how a particular process might be carried out
Multicellular organism composed of many cells
Natural Selection mechanism of evolution caused by environmental selection of organisms most fit to reproduce
Observation step in the scientific method by which data are collected before a conclusion is drawn
Order taxa used to categorize species; above the family level
Organ combo of 2/more different tissues performing a common function
Organism individual living thing
Organ System group of related organs working together
Photosynthesis process occurring usually w/I chloroplasts whereby chlorophyll-containing organelles trap solar energy
Phylum taxa used to categorize species; above the class level
Placebo treatment that contains no medication but appears to be same treatment as that administered to other test groups in a controlled study
Plant "multicellular, usually photosynthetic, organism belonging to the plant kingdom"
Population group of interbreeding individuals of the of the same species occupying the same area at the same time
Principle theory that is generally accepted by an overwhelming number of scientists
Protest member of kingdom Protista
Reproduce to produce a new individual of the same kind
Scientific Theory "concept supported by a broad range of observations, experiments, and data"
Species groups of similarly constructed organisms capable of interbreeding and producing fertile offspring
Systematics study of the diversity of organisms to classify them and determine their evolutionary relationships
Taxonomy "branch of biology concerned with identifying, describing, and naming organisms"
Technology application of scientific knowledge for a practical purpose
Test Group "in a controlled experiment, the group subjected to the experimental variable"
Tissue group of similar cells combined to perform a common function
Created by: armyhorses