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Bio- Vocab Unit 1

Adaptation An organism changing it's structures and behavior to help it survive in a specific environment.
Atom smallest particle in an element
Autotrophs organisms that makes its own food
Binomial System Identifying organisms by their genus and species names
Biodiversity Includes the diversity of species and their interrelationships with their environment.
Elements A unique substance matter is formed that can not be broken down
Molecules Groups of two or more atoms held together by chemical bonds in a specific order.
Organic Molecules Molecules that contain carbon and some hydrogen is bound.
Cell Basic unit of life
Tissue A group of cells that carry out a specific function.
Organs A combination of tissue that work together to carry out closely related functions.
Organ System Organs united by a common overall function
Organism A living thing made up of cells, that can either have single or multiple cells
Species A group of similar organisms that can breed and produce fertile offspring
Population A group of organisms of the same species in a given area
Community A collection of different populations that interact with each other
Natural Causality The scientific principle that all natural events can be traced back to natural causes. They are comprehendible.
Scientific Method Six interrelated operations used to come to a conclusion about an experiment
Observation The usage of the five senses to obtain evidence.
Question A curiosity such as "Why did this happen?" that asks for information
Hypothesis An educated guess
Prediction What you believe will happen
Experiment A way to test a prediction that will either support or deny the hypothesis
Conclusion A summary based on the evidence from the experiment to prove or deny the hypothesis
Variable A single factor that can change
Controls Variables not being tested that remain contant
Scientific Theory A general explanation of important natural phenomena. discovered from extensive and reproducible observations.
Inductive reasoning A generalization from many observations supporting it, and none denying it
Deductive reasoning making a hypothesis based on something well supported like the scientific theory
Evolution Change in a kind of organism over time
Natural Selection A process in which organisms that have certain inherited traits, tend to survive and reproduce at higher rates than others because of those traits
DNA A molecule containing the heredity of info of all known forms of life; a cells genetic blueprint
chromosomes structures made of DNA molecules that contain the genes
mutations mistakes in the copying process of DNA
Homeostasis A process where an organism resists change in order to maintain a stable and fairly constant eternal balance. "to stay the same"
Cell theory the cell is the basic unit of life
genes Units of heredity that help determine the characteristics of an organism, and to control life in a cell.
organelles a small specialized structure that carries out a specific function within the cell
cell membrane A thin layer surrounding the cell that regulates what enters and leaves and separates the internal from the external environment
cytoplasm a jellylike fluid the cell which contain organelles
nutrients Substances organisms need for energy, growth, maintenance and life processes
energy the ability to do work
photosynthesis Conversion of light energy from the sun into chemical energy like sugar. Used in plants.
autotroph An organism that makes its own food, self feeders, undergoes photosynthesis.
heterotroph An organism that cannot make its own food, must consume other organisms for energy.
domains major categories
kingdoms major subdivision of domains
prokaryotic A unicellular organism that lacks a nucleus but carries info in the cytoplasm
eukaryotic has a nucleus and other organelles
nucleus Control center of the cell, A membrane enclosed sac that contains the cell's genetic material
multicellular Many celled; lives depend on communication and cooperation
unicellular Multicellular Many celled; lives depend on communication and cooperation Unicellular Single celled; little communication, cooperation, and organization
Created by: cpsaltos
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