Biology Mid-Term

Front 1

Qualitative and Quantitative Data

Back 1

Qualitative: data that you your your five senses

Quantitative: data that has numbers(data chart)

Front 2

Independent and Dependent Variable

Back 2

Independent: the variable that affects the outcome of the experiment

Dependent: the variable that results from changes in the independent

Front 3

Control and Constant and Experimental Group

Back 3

Control: the standard against which results are compared

Constant: things that stay the same

Experimental Group: group thats gets tested on

Front 4

Hypothesis

Back 4

the explanation for a question or a problem that can be formally tested

Front 5

Theory

Back 5

the explanation of a natural phenomenon supported by a large body of scientific evidence obtained from many different investigations and observations

Front 6

Cell Theory

Back 6

1- all organisms are composed of one or more cells

2- the cell is the basic unit of structure and organizations of organisms

3- all cells come from preexisting cells

Front 7

Anton van Leeuwenhook

Back 7

used a microscope to view water from a pond, and he discovered many living creatures

Front 8

Robert Hooke

Back 8

used a microscope to observe a thin slice of cork in 1665, he saw "a lot of little boxes", he called them cells

Front 9

Mattias Schleiden

Back 9

german botanist, concluded that cells make up not only the stems and roots but every part of the plant

Front 10

Theodor Schwann

Back 10

german zoologist, claimed that animals are also made of cells

Front 11

Rudolph Virchow

Back 11

german physician, determined that cells come only from other cells

Front 12

Schleidan, Schwann, and Virchow

Back 12

helped from the cell theory with observations

Front 13

Covalent, Ionic, and Hydrogen Bonding

Back 13

Covalent: a bond when two or more atoms share electrons to form a molecule

ionic: a bond when molecules gain or lose electrons

hydrogen: bond in a water molecule when molecules are shared by oxygen and hydrogen