BIOLOGY PRAXIS 5235 EXAM
QUESTIONS AND ANSWERS
Scientific Method - Correct Answers -1) Observation 2) Research 3) Hypothesis 4) Test
the hypothesis 5) Analysis of Data 6) Conclusion 7) Communication
Anton van Leeuwenhoek - Correct Answers -Created the microscope and observed
microorganisms
Carolus Linnaeus - Correct Answers -Created the binomial nomenclature system for
classifying species
Georges Cuvier - Correct Answers -Established extinction as a fact
Jean-Baptiste Lamarck - Correct Answers -Proposed teleological evolution
Matthias Schleiden - Correct Answers -Stated that plants are made of cells
Altruism - Correct Answers -occurs when a member of a community sacrifices itself for
the benefit of the group
Taxes - Correct Answers -how an organism responds to a stimulus
Ecology - Correct Answers -how organisms interact with other organisms and with their
physical environment
Rudolf Virchow - Correct Answers -Stated that cells can arise only from pre-existing
cells
Louis Pasteur - Correct Answers -Developed pasteurization (killing of harmful
microorganisms) and the germ theory of disease
Gregor Mendel - Correct Answers -Discovered the basics for genetics and laws of
inheritance
James Watson and Francis Crick - Correct Answers -Described the helical nature of
DNA based on work by Rosalind Franklin and began the field of molecular genetics
Independent variable - Correct Answers -Is the factor being tested
, Dependent variable - Correct Answers -Is the factor being measured
SI Units - Correct Answers -"Kangaroos Hop Down Mountains Drinking Chocolate Milk."
Kilo - Hecto - Deca - Meter/Gram/Liter - Deci - Centi - Milli
Precision - Correct Answers -refers to how close several measure values are to each
other
Accuracy - Correct Answers -how close the measured values are to the true or actual
value
Chi-square - Correct Answers -A statistical test often used in biology to compare
observed data with expected data for a particular hypothesis to determine the goodness
of fit for the data
Percent Error - Correct Answers -(theoretical value - experimental value)/theoretical
value and then everything is multiplied by 100
Material Safety Data Sheet (MSDS) - Correct Answers -Documents the features for a
particular chemical
Five Common chemical hazards in lab - Correct Answers -Flammables, corrosives,
oxidizers/reactives, toxins, mercury
Noninfectious biological materials - Correct Answers -Not a communicable hazard;
waste can be disposed of by double-bagging in plastic trash bags secured by metal wire
twists; these wastes can then be added to the materials headed for the public landfill in
accordance with state and local regulations
Infectious biological materials - Correct Answers -consist of all communicable biological
materials; require decontamination before removal from the site
Release of non indigenous species - Correct Answers -unlawful in most areas; must be
approved by the State Department of Natural Resources
Misfeasance - Correct Answers -the defendant acted in a imprudent manner
Nonfeasance - Correct Answers -the defendant did not act at all when the defendant
had a duty to act
Malfeasance - Correct Answers -the defendant acted with a bad motive or to inflict
deliberate injury
Polar Covalent Bonds - Correct Answers -characterized by a partial positive charge and
partial negative charge on the resulting molecule; water is the most important one
QUESTIONS AND ANSWERS
Scientific Method - Correct Answers -1) Observation 2) Research 3) Hypothesis 4) Test
the hypothesis 5) Analysis of Data 6) Conclusion 7) Communication
Anton van Leeuwenhoek - Correct Answers -Created the microscope and observed
microorganisms
Carolus Linnaeus - Correct Answers -Created the binomial nomenclature system for
classifying species
Georges Cuvier - Correct Answers -Established extinction as a fact
Jean-Baptiste Lamarck - Correct Answers -Proposed teleological evolution
Matthias Schleiden - Correct Answers -Stated that plants are made of cells
Altruism - Correct Answers -occurs when a member of a community sacrifices itself for
the benefit of the group
Taxes - Correct Answers -how an organism responds to a stimulus
Ecology - Correct Answers -how organisms interact with other organisms and with their
physical environment
Rudolf Virchow - Correct Answers -Stated that cells can arise only from pre-existing
cells
Louis Pasteur - Correct Answers -Developed pasteurization (killing of harmful
microorganisms) and the germ theory of disease
Gregor Mendel - Correct Answers -Discovered the basics for genetics and laws of
inheritance
James Watson and Francis Crick - Correct Answers -Described the helical nature of
DNA based on work by Rosalind Franklin and began the field of molecular genetics
Independent variable - Correct Answers -Is the factor being tested
, Dependent variable - Correct Answers -Is the factor being measured
SI Units - Correct Answers -"Kangaroos Hop Down Mountains Drinking Chocolate Milk."
Kilo - Hecto - Deca - Meter/Gram/Liter - Deci - Centi - Milli
Precision - Correct Answers -refers to how close several measure values are to each
other
Accuracy - Correct Answers -how close the measured values are to the true or actual
value
Chi-square - Correct Answers -A statistical test often used in biology to compare
observed data with expected data for a particular hypothesis to determine the goodness
of fit for the data
Percent Error - Correct Answers -(theoretical value - experimental value)/theoretical
value and then everything is multiplied by 100
Material Safety Data Sheet (MSDS) - Correct Answers -Documents the features for a
particular chemical
Five Common chemical hazards in lab - Correct Answers -Flammables, corrosives,
oxidizers/reactives, toxins, mercury
Noninfectious biological materials - Correct Answers -Not a communicable hazard;
waste can be disposed of by double-bagging in plastic trash bags secured by metal wire
twists; these wastes can then be added to the materials headed for the public landfill in
accordance with state and local regulations
Infectious biological materials - Correct Answers -consist of all communicable biological
materials; require decontamination before removal from the site
Release of non indigenous species - Correct Answers -unlawful in most areas; must be
approved by the State Department of Natural Resources
Misfeasance - Correct Answers -the defendant acted in a imprudent manner
Nonfeasance - Correct Answers -the defendant did not act at all when the defendant
had a duty to act
Malfeasance - Correct Answers -the defendant acted with a bad motive or to inflict
deliberate injury
Polar Covalent Bonds - Correct Answers -characterized by a partial positive charge and
partial negative charge on the resulting molecule; water is the most important one
