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Biology Chapter 1

The study of living things - the science of life. Biology
The 7 characteristics of living organisms. Cellular organization, Order, Sensitivity, Growth development and reproduction, Energy untilization, Evolutionary adaption, Homeostasis
The process by which organisms maintain relatively constant internal conditions. Homeostasis
The fundamental element of matter. atom
The basic unit of life. Cell
A group of complex biological molecules within a cell. Organelle
The three levels of cellular organization. Tissues, Organs, Organ systems
Groups of similar cells that act as a functioning unit. Tissues
Body structures composed of several different tissues grouped together in a structural and functional unit. Organs
Groups of organs that are interconnected. Organ systems
The four levels of the living hierarchy. Population, Species, Biological community, Ecosystem
A group of organisms of the same species living in the same place. Population
All the populations of a kind of organism. Species
All the populations of different species living together in one place. Biological community
A biological community and the physical habitat within which it lives together. Ecosystem
The novel properties which emerge at each higher level in the livng higherarchy. Emergent properties
Type of reasoning that applies general principles to predict specific results. Deductive reasoning
Type of reasoning that uses specific observations to construct general scientific principles. Inductive reasoning
A suggested explanation that accounts for certain observations. Hypothesis
The test of a hypothesis. Experiment
The theory that says that all living organisms consist of cells. Cell theory
Man who came up with cell theory. Robert Hooke
The entire set of DNA instructions that specifies a cell. Genome
Clusters of atoms. molecules
All living things share certain key characteristics including: cellular organization, sensitivity, growth, development and reproduction, adaption, and homeostasis. (blank)
Factors that influence the outcome of an experiment. Variables
An experiment in which all variables are left unaltered. A control experiment
A proposed explanation for some natural phenomenon. Theory
The body of interconnected concepts, supported by scientific reasoning and experimental evidence, that explains the facts in some area of study. Theory
The scientific process involves rejecting hypotheses that are inconsistent with experimental results or observations. Hypotheses that are consistent with available data are conditionally accepted. The formulation of a hypothesis often involves creative insight.
The theory that natural laws produce change over time. Evolution
Darwin was the first to propose natural selection as an explanation for the mechanisn of evolution that produced the diversity of life on earth. His hypothesis grew from his observations on a five-year voyage around the world. (blank)
Having the same evolutionary origin, but now differing in structure and function. Homologous
Having different evolutionary origins, but now having similar structure and function. Analogous
A discrete unit of information found within the DNA code. gene
The genetic material of all organisms; composed of two complememtary chains of nucleotides wound in a double helix. DNA (Deoxyribonucleic acid)
The use of selected animals to produce dertain characteristics. Artificial selection
Accumulated changes in nucleotide sequences over time. Molecular clock
Created by: melodious88