BIO 100 EXAM 1 QUESTIONS &
ANSWERS (GRADED A+)
Causal Question - ANSWERwhy or how does a phenomenon occur?
hypothesis - ANSWERAn answer to a causal question
prediction - ANSWERthe expected results of an experiment, given that a certain
hypothesis is true
Analogous structures - ANSWERstructures that are similar in unrelated organisms
Convergent evolution - ANSWEREvolution toward similar characteristics in unrelated
species
placebo - ANSWERsomething which has a positive mental effect, but no physical
effect
Theory - ANSWERtheories are models based on the best evidence we can gather
on a given subject
null hypothesis - ANSWERthe hypothesis that nothing is happening and that our
experiment failed.
p-value - ANSWERthe probability of getting an extreme value
What does a branch represent on a phylogenetic tree - ANSWERA population
evolving through time
What does a node on a phylogenetic tree represent - ANSWERThe most recent
common ancestor
Independent variable - ANSWERThe variable you change
Dependent variable - ANSWERThe outcome factor; the variable that may change in
response to manipulations of the independent variable.
Control group - ANSWERA thing we can compare our results to
conclusion - ANSWERwhether or not a hypothesis is supported
Process of Scientific Inquiry - ANSWERObserve, ask causal question, hypothesize,
design an experiment, predict, conclude
ANSWERS (GRADED A+)
Causal Question - ANSWERwhy or how does a phenomenon occur?
hypothesis - ANSWERAn answer to a causal question
prediction - ANSWERthe expected results of an experiment, given that a certain
hypothesis is true
Analogous structures - ANSWERstructures that are similar in unrelated organisms
Convergent evolution - ANSWEREvolution toward similar characteristics in unrelated
species
placebo - ANSWERsomething which has a positive mental effect, but no physical
effect
Theory - ANSWERtheories are models based on the best evidence we can gather
on a given subject
null hypothesis - ANSWERthe hypothesis that nothing is happening and that our
experiment failed.
p-value - ANSWERthe probability of getting an extreme value
What does a branch represent on a phylogenetic tree - ANSWERA population
evolving through time
What does a node on a phylogenetic tree represent - ANSWERThe most recent
common ancestor
Independent variable - ANSWERThe variable you change
Dependent variable - ANSWERThe outcome factor; the variable that may change in
response to manipulations of the independent variable.
Control group - ANSWERA thing we can compare our results to
conclusion - ANSWERwhether or not a hypothesis is supported
Process of Scientific Inquiry - ANSWERObserve, ask causal question, hypothesize,
design an experiment, predict, conclude
