History
a ruler who stays in power by the use of force.
tyrant
A ___________ is a two-dimensional plane formed by the intersection of a vertical line called y-axis and a horizontal line called x-axis.
coordinate plane
a muscle that only exists in the heart
cardiac muscle
(n) a grassland plain with few trees in tropical or subtropical areas
savanna
the body system that processes, transports, collects, and removes liquid waste from the body
urinary system
A famous leader and orator from Athens.
Pericles
a transformation of a figure in which each point is replaced by a point symmetric with respect to a line or plane
reflection
two lower chambers through which blood leaves the heart
ventricles
(n) cycles (patterns) of economic growth and decline often found in modern capitalist economies
boom and bust cycle
the cavity in the nase which can moistened and warmed the air
nasal cavity
free men of ancient Athens who had a say in governmental issues.
citizen
the mixture of transformation
composition
the body system that collects and eliminates wastes from the body and regulates the level of fluid in the body.
excretory system
(n) a person who wanted to ban slavery (especially until the late 1800’s)
abolitionist
two tubes that branch from trachea and lead into lungs
bronchi
a small group of people having control of a country,
organization or institution.
oligarchy
The x-axis and y-axis separate the coordinate plane into four regions, called _________.
quadrants
the functional unit of kidney, made of networks of capillaries and small tubes, or tubules, where filtration of blood occurs
nephron
(n) a slum (poor) area in or near a city, especially in Brazil
favela
an iron-rich protein molecules in the red blood cells
hemoglobin
a member of a privileged, upper class
aristocrat
the mixture of transformation
composition
Urine leaves the bladder through a tube
urethra
(n) a form of alcohol; a fuel made from various plants
ethanol
irregularly shaped pieces of cells that plug wounds and stop bleeding
platelet