Concepts & Investigations Ch.1 The Scientific Study of Life
The Scientific Study of Life
Terms in this set (44)
A single living individual.
The smallest unit of life that can function independently.
A cell that does not have a nucleus and membrane-bounded organelles; bacteria and archaea
Organism made up of one or more cells that have a nucleus and membrane-bounded orgenelles
A particle of matter; composed of protons, neutrons, and electrons.
Two or more atoms joined by chemical bonds.
A group of cells that interact and provoke a specific function.
Two or more tissues than interact and function as an integrated unit.
Two or more physically or functionally linked organs.
Interbreeding members of the same species occupying the same region.
All populations that occupy the same region
The living and nonliving components of an area
The global ecosystem: the parts of the planet and its atmosphere where life is possible
New properties that arise in each step upward in the hierarchy of life from arrangement and interactions among component parts.
Make their own food by extracting energy and nutrients from non-living sources
obtain energy and nutrients by eating other organisms, living or dead
heterotrophs that obtain energy and nutrients from wastes or dead organisms
Animal that eats decomposing organic matter.
ability of an organism maintain a stable internal equailibrum
genetic info comes from only one parent, and all offspring are virtually identical.
genetic material from two parent individuals unites to form an offspring, which has new combinations of inherited traits
inherited characteristic or behavior that enables an organism to survive and reproduce successfully in its environment.
A change in a DNA sequence.
the enhanced reproductive success of certain individuals from a population based on inherited characteristics.
Descent with modification; change in allele frequencies in a population over time.
the biological science of naming and classifying organisms
basic unit of classification Designates distinctive "type" of organisms
denote the unique scientific name of each type of organism
all species fall into one of three (broadest most inclusive) taxonomic category
Animalia, Fungi, Plantae.
general way of using evidence to answer questions and test ideas
Is a testable educated guess of a proposed mechanism to solve an observed phenomena.
scientists independently evaluate the validity of the methods, data, and conclusions.
is an investigation carried out in a controlled conditions
which is the number of individuals that he or she will study
a changeable element of an experiment
The subject of study.
The measurable results.
anything that the investigator holds constant for all subjects in the experiment
an inert substance that resembles the treatment given to the experimental group
neither the researchers nor the participants knew who received the placebo
A hypothesis which has been tested, but never disproved.
the probability that the results arose purely by chance