7th Grade Life Science Quiz

What is the basic unit of life?

• Molecule

• Atom

• Tissue

• Cell

Which scientist's experiment helped disprove spontaneous generation?

• Linnaeus

• Both Redi and Pasteur

• Pasteur

• Redi

What is homeostasis?

• Cell division

• Reproduction of cells

• Maintaining internal balance

• Growth of cells

What part of the microscope is used to look through?

• Stage

• Objective lens

• Diaphragm

• Eyepiece

What is the total magnification if the eyepiece is 10x and the objective lens is 40x?

• 100x

• 50x

• 400x

• 10x

What is the difference between unicellular and multicellular organisms?

• Function

• Size

• Number of cells

• Color

Which part of a cheek cell contains the genetic material?

• Cytoplasm

• Cell membrane

• Nucleus

• Ribosome

What is the broadest level of classification?

• Kingdom

• Domain

• Genus

• Species

What does binomial nomenclature refer to?

• Hierarchy of organisms

• Three-part naming system

• Classification of cells

• Two-part scientific names

What is convergent evolution?

• Divergence of species

• Evolution of a single species

• Adaptation to different environments

• Similar traits in unrelated species