7th Grade MSL Review

protist that moves by flagellum; mixotroph; eyespot

Middle layer of the atmosphere where meteors are burned up; coldest layer

An instrument used to measure air pressure

the branch of biology that studies heredity and variation in organisms

energy formed by the movement of electrons;

Display of colors seen in the ionosphere

the process by which water changes from a liquid to a gas

wispy, feathery clouds made mostly of ice crystals that form at high levels

Gave us the name "cells"

gel-like material inside the cell

temperature at which condensation begins

Controls what enters and leaves the cell

Front formed when cold air rushes in a forces warm air up

Organelle in plant cells that contains chlorophyll and makes food for the plant

Most abundant gas in the atmosphere

transfer of heat through a fluid (liquid or gas): warm molecules rise, cooler molecules sink

Lowest layer of the atmosphere where we live

observable trait of an organism that masks the recessive form of a trait

A body of air with the same temperature and moisture throughout

Organelle that produces energy: powerhouse

body system that moves substances to and from cells where they are needed

a boundary where two air masses meet

Cell division that produces two diploid cells; asexual

A protist that moves by cytoplasmic streaming and engulfs its food using pseudopods

the process by which gas changes to a liquid

A warm dry air mass

Which of the following is a genetic disease

A wet cold air mass