Manipulative experiments
A. are most often conducted in a laboratory.
B. are not possible.
C. do not allow the scientist to control variables.
D. are not useful to ecologists because they depend on the natural environment.
Answer: A
You might also like to view...
What makes mullions and buckle folds similar?
What will be an ideal response?
A car's engine is 20 percent efficient. When cruising, the car encounters an average retarding force of 1000 N. If the energy content of gasoline is 40 MJ/L, how many kilometers per liter does the car get?
A) 14 km/L B) 12 km/L C) 10 km/L D) 8 km/L E) none of the above
What are the fundamental sources of energy?
a. Energy directly from the Sun (i.e., solar energy) b. Energy directly from gravity (tidal) c. Energy involving both solar energy and gravity (wind, and water movement) d. Energy via photosynthesis (fossil fuels) e. All of them
Discuss the role of humans in regulating carrying capacity for the human species and in altering the carrying capacity for other species
What will be an ideal response?