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41 Cards in this Set

  • Front
  • Back
cell
The basic part of all living things. (p. 32)
organism
Any single living thing. (p. 32)
kingdom
One of five large groups into which scientists classify all organisms. (p. 34)
nucleus
1. The control center of a cell. (p. 37)
protists
A one-celled organism. (p. 36)
fungus
A plantlike living thing that does not contain chlorophyll. (p. 42)
spore
A single cell that can grow into a new organism (p. 44)
moneran
A one-celled organism that does not have a nucleus. (p. 48)
bacteria
Another name for monerans. (p. 48) Note: singular form = bacterium
virus
A thing that seems to be alive, but is not made of cells. (p. 51)
invertebrates
An animal that has no backbone. (p. 61)
pore
A small hole or opening in a sponge. (p. 65)
parasite
A living thing that lives on or in another living thing and harms the living thing on which it lives. (p. 69)
mollusk
An invertebrate that has a soft body. (p. 76)
arthropod
An animal with jointed legs, a segmented body, and a hard outer covering. (p. 80)
sponge
An animal that does not move from place to place and spends its life attached to a hard surface. All sponges have an outer body layer that has many pores. (p. 64)
exoskeleton
The hard outer covering of an arthropod. (p. 81)
molt
To shed the outer body covering. (p. 81)
abdomen
The rear part of an insect's body. (p. 85)
thorax
The middle part of an insect's body. (p. 85)
matter
Anything that has mass and takes up space. (p. 170)
mass
A measure of the amount of matter in an object. (p. 176)
substance
Something made of only one kind of matter. (p. 171)
mixture
Matter that contains two or more different substances. (p. 171)
element
A substance that cannot be broken down by simple means into any other substance. (p. 172)
compound
A substance made when two or more elements combine to form a new substance. (p. 172)
atom
The smallest particle of an element that has the chemical properties of the element. (p. 186)
electron
A particle that has a negative electric charge. (p. 187)
proton
A particle with a positive electric charge. (p. 187)
neutron
A particle that has no electric charge. (p. 187)
molecule
A group of atoms held together by one type of chemical bond. (p. 191)
chemical property
A trait that describes how one substance reacts with another substance. (p. 175)
physical property
A trait that can be observed or measured without changing the identity of the substance. (p. 175)
atomic number
The number of protons in one atom of an element. (p. 187)
chemical symbol
One or two letters that stand for the name of an element. (p. 192)
formula
A group of symbols that shows how many atoms of each element are in a molecule or in the smallest unit of a compound. (p. 193)
state
One way to classify matter (solid, liquid, gas). (p. 171) Note: Other ways to classify matter - substance or mixture. (p. 171)
solid, liquid, gas
The common states of matter. (p. 171)
density
A property related to mass. The measure of the mass of a certain volume of a substance. (p. 176)
volume
How much space a solid object occupies. (p. ???)
chemical bond
A force that holds two atoms together. (p. 191)