basic units of structure and function in living things
What are cells?
100
What your body uses in food to survive?
What are nutrients?
100
small structures that are not made of cells and do not take in food or make waste; they can reproduce by invading another organism
What are viruses?
200
a new organism produced by a living thing
What is an offspring?
200
the period of fastest growth of most organisms
What is the first part of their life?
200
an organism with only one cell
What is unicellular?
200
smallest particles of elements that can still be identified as that element
What are atoms?
200
other than oxygen, two other main elements in living things
What are Hydrogen and Carbon?
300
the process by which organisms keep their internal conditions relatively stable
What is homeostasis?
300
to act in return or in answer to something
What is to respond?
300
organism with more than one cell
What is multicellular?
300
a pure substance made of the same kinds of atoms
What is an element?
300
carbohydrates, lipids, proteins, and nucleic acids
What are the main types of compounds in living things?
400
smallest part of an element that can be identified as that element
What is an atom?
400
the change that occurs in the environment
What is stimulus?
400
cell of multicellular organisms that has a specific job or purpose
What is a specialized cell?
400
formed when two or more atoms combine
What is a molecule?
400
help build and repair living cells; make up hair, finger nails, muscle fibers, spider webs, and feathers
What are proteins?
500
any living thing
What is an organism?
500
offspring are produced by this process
What is reproduction?
500
three of the seven characteristics most organisms have in common
What is the ability to move, use energy, grow and develop, respond to their environment, reproduce, maintain stable body conditions, and that organisms are made of cells?