Bio 200 Lab Quizzes Exam Questions
and Answers
When we examine the method of scientific inquiry closely, it is clear then that a
single experiment can prove a hypothesis --- - ANSWER-false
how easy is it for us to believe that a hypothesis is true? - ANSWER-it takes many
investigations
When we prove a hypothesis false, we say that we --- it - ANSWER-falsify or refute
Scientists avoid saying that an investigation ---- - ANSWER-proves a hypothesis
true, recognizing the level of uncertainty involved in inductive reasoning
Instead of scientists saying "proves true" they say - ANSWER-they say that the data
support the hypothesis
What scientific investigation does not involve hypothesis testing? - ANSWER-
observation and comparison
Scientific knowledge is knowledge that can be proven --- - ANSWER-can be proven
false
Can this be answered with a scientific inquiry?
Do blondes make better dance partners? - ANSWER-no
Can this be answered with a scientific inquiry?
What is the cause of polio? - ANSWER-yes
Can this be answered with a scientific inquiry?
When will your plum tree produce ripe fruit? - ANSWER-yes
Can this be answered with a scientific inquiry?
Why do bad things sometimes happen to good people? - ANSWER-no
(what's bad? what's good?)
Independent variables** - ANSWER-you manipulate to see effects
dependent variables ** - ANSWER-results depend on independent variables
Ex: Stair climbing for cows, chicken and zebras
, indpt-
dependt- - ANSWER-indpt- species
dependent- rate of stair climbing
A control treatment is a condition where -- - ANSWER-the independent variable is
either eliminated or set to a standard value
Indicate the control for :
The dose of penicillin that is most effective at combating strep throat - ANSWER-
control: normal dose
Indicate the control for :
The effect of carbohydrate loading on running performance - ANSWER-no
carbohydrates
Lab 2 - ANSWER-----
One of the earliest well-known classifiers of nature was - ANSWER-Carolus
Linnaeus
Linnaeus published the most influential classification scheme ever written in the book
-- - ANSWER-Systema Naturae
Systema Naturae --- - ANSWER-classified all known organisms and created a
system for classifying any yet to be discovered organisms
Systema Naturae still --- - ANSWER-forms the basis for the classification system
modern biologists use today
How did Linnaeus start classification? - ANSWER-He looked for similarities among
organisms
What is a dichotomous tree? - ANSWER-each branch is split between two groups
and each branch ends with a single unique item
Phenograms - ANSWER-Diagrams that show similarities based on superficial or
arbitrary attributes
What do the most scientific phenograms use - ANSWER-dichotomous branching
When a phenogram is made of a group of organisms, does it always reflect natural
classification? - ANSWER-It may and it may not- depends on if the attributes reflect
shared ancestry or not
Is there a perfect account of species relationships? - ANSWER-No-we haven't been
around to watch evolve.
and Answers
When we examine the method of scientific inquiry closely, it is clear then that a
single experiment can prove a hypothesis --- - ANSWER-false
how easy is it for us to believe that a hypothesis is true? - ANSWER-it takes many
investigations
When we prove a hypothesis false, we say that we --- it - ANSWER-falsify or refute
Scientists avoid saying that an investigation ---- - ANSWER-proves a hypothesis
true, recognizing the level of uncertainty involved in inductive reasoning
Instead of scientists saying "proves true" they say - ANSWER-they say that the data
support the hypothesis
What scientific investigation does not involve hypothesis testing? - ANSWER-
observation and comparison
Scientific knowledge is knowledge that can be proven --- - ANSWER-can be proven
false
Can this be answered with a scientific inquiry?
Do blondes make better dance partners? - ANSWER-no
Can this be answered with a scientific inquiry?
What is the cause of polio? - ANSWER-yes
Can this be answered with a scientific inquiry?
When will your plum tree produce ripe fruit? - ANSWER-yes
Can this be answered with a scientific inquiry?
Why do bad things sometimes happen to good people? - ANSWER-no
(what's bad? what's good?)
Independent variables** - ANSWER-you manipulate to see effects
dependent variables ** - ANSWER-results depend on independent variables
Ex: Stair climbing for cows, chicken and zebras
, indpt-
dependt- - ANSWER-indpt- species
dependent- rate of stair climbing
A control treatment is a condition where -- - ANSWER-the independent variable is
either eliminated or set to a standard value
Indicate the control for :
The dose of penicillin that is most effective at combating strep throat - ANSWER-
control: normal dose
Indicate the control for :
The effect of carbohydrate loading on running performance - ANSWER-no
carbohydrates
Lab 2 - ANSWER-----
One of the earliest well-known classifiers of nature was - ANSWER-Carolus
Linnaeus
Linnaeus published the most influential classification scheme ever written in the book
-- - ANSWER-Systema Naturae
Systema Naturae --- - ANSWER-classified all known organisms and created a
system for classifying any yet to be discovered organisms
Systema Naturae still --- - ANSWER-forms the basis for the classification system
modern biologists use today
How did Linnaeus start classification? - ANSWER-He looked for similarities among
organisms
What is a dichotomous tree? - ANSWER-each branch is split between two groups
and each branch ends with a single unique item
Phenograms - ANSWER-Diagrams that show similarities based on superficial or
arbitrary attributes
What do the most scientific phenograms use - ANSWER-dichotomous branching
When a phenogram is made of a group of organisms, does it always reflect natural
classification? - ANSWER-It may and it may not- depends on if the attributes reflect
shared ancestry or not
Is there a perfect account of species relationships? - ANSWER-No-we haven't been
around to watch evolve.
