Bio

The study of life, offers an organized and scientific framework for posing and answering such questions about the natural world

The high degree of order within an organism's internal and external parts and in its interactions with the living world

The smallest unit that can preform all life's processes

Some organisms, such as bacteria, are made up of one cell

Other organisms, such as humansor trees, are made up of multiple cells

Structures that carry out specialized jos within an organ system

Groups of cells that have similar abilities and that allow the organ to function

Tiny structures that carry out functions necessary for the cell to stay alive

The chemical compounds that provide physical structure and that bring about movement, energy use, and other cellular functions

The maintenance of a stable level of internal conditions even though environmental conditions are constantly changing

The sum of all the chemical reactions that take in and transform energy and materials from the environment

The formation of wo new cells from an existing cell

The process by which as organism becomes a mature adult

The making of new organsims like themselves

A short segment of DNA that contains the instructions for a single traait of an organism

Major subdivisions of all organisms

Grouping of organisms that divided all life into six major categories

The branch of biology that studies organisms interacting with each other and with the environment

Communities of living species and their physical environments

The process in which the inherited characteristics within populations change over generations, such that genetically distinct populations and new species can develop

Organisms that have certain favorable traits are better able to survive and reproduce sucessfully than organisms that lack these traits

Traits that improve an individual's ability to survive and reproduce

Provides a normal standard against which the biologist can compare results of the experimental group

The control group except for one factor, the independent variable

The factor that is deliberately manipulated, also called the manipulated variable

The factor that changes as a result of manipulation of one or more other factores; also called a responding variable

When a set of related hypothesis is confirmed to be true many times

Anonymous critique on a research paper

ANything that occupies space and has mass

The quantity of matter an object has

Substances that cannot be broken down chemically into simpler kinds of matter

The simplest particle of an element that retains all of the propeties of that element

Makes up the bulk of the mass of the atom and consists of two kinds of subatomic particles, a protons and a nuetron

The number of protons in an atom

An atom is equal to the total number of protons and nuetrons of the atom

A three-dimensional region around a nucleus that indicates the probable location of an electron

Atoms of the same element that have a different number of nuetrons

Made up of atoms of two or more elements in fixed proportions

The attractive forces that hold atoms together

Two atoms share one or more pairs of electrons

The simplest part of a substance that retains all of the properties of that substance that retains all of the properties of that substance and can exist in a free state

An atom or molecule with an electrical charge

Positive and negative electrical charges attract each other

The ability to do work

One or more substances change to produce one or more different substances

A substance or molecule that participates in a chemical reaction

The end result of a chemical equation

The term used to describe all of the chemical reactions that occur in an organism

The amount of energy needed to start the reaction

A chemical substance that reduces the amount of activation energy that is needed for a reason to take place

A protein or RNA molecule that speeds up metabolic reactions without being eprmanently changed or destroyed

A reaction in which electrons are transferred between atoms are known as oxidation reduction reactions

A reactant loses one or more electrons, thus becoming more positive in charge

A reactant gains one or more electrons, thus becoming more negative in charge

Uneven distribution of charge

The force of attraction between a hydrogen molecule with a partial positive charge and another atom or molecule with a partial or full negative charge

An attractive force that holds molecules of a single substance together

The attractive force between two particles of different substances

The attraction between molecules that results in the rise of the surface of a liquid when in contact with a solid

A mixture in which one or more substances are uniformly distributes in another substance

A substance dissolved in the solvent

The substance in which the solute is dissolved

A solution is amount of solute dissolved in a fixed amount of the solution

One in which no more solute can dissolve

Solutions in which water is the solvent

OH -

H3O+

The number of hydronium ions in a solution is greater that the number of hydroxide ions

A solution that contains more hydroxide ions than hydronium ions

Ranges from 0-14 and tells how basic or acid something is

Chemical substances that neutralize small amounts of either an acid or a base added to a solution