• Question 1
The sentence, “O you, who look on this our machine, do not be sad that with others you are
fated to die, but rejoice that our Creator has endowed us with such an excellent instrument as
the intellect” was first spoken by
Answer: Leonardo da Vinci
• Question 2
Directional selection
Answer: moves a population phenotypically in a new direction.
• Question 3
Preening behavior enables a bird to continue to fly successfully by
repairing feather surface breaks between
Answer: barbules.
• Question 4
To a Darwinist, a beneficial mutation