Lesson 8 - Research Methods

Why is the arithmetic mean not useful for averaging noise levels?

Why should each germination test be replicated?

Which of the following is NOT a method for measuring water turbidity?

How do electronic turbidimeters measure turbidity?

How should the pH range be determined for the final experiment?

What characteristic makes a plant species a good experimental subject for germination studies?

How do trees influence microclimates?

Which of the following should NOT be a standardized variable in a germination experiment?

Which of the following can be tested for acoustic insulation in an experiment?

Why is standardizing variables important in an experiment?

What is an alternative method for measuring biomass in duckweed?

Why is measuring water turbidity important?

What is a potential consequence of inorganic nutrients entering water bodies?

Why is measuring dry biomass more accurate than measuring living biomass?

Why should the same sound level meter be used throughout an experiment?

Why do high and low pH conditions affect germination?

Which of the following is NOT a microclimate factor that trees influence?

Which of the following is NOT a vegetation feature that affects microclimates?

Which of the following is NOT a factor affecting rain splash erosion?

What factor must be standardized when using an electronic turbidimeter?