An experiment wants to find the wind speed that begins to lift an airplane. the strategy is to use a 1/32 scale model and wind tunnel. why is this strategy valid?
a. a wind tunnel is available for the experiment.
b. the real airplane will not fit in the wind tunnel.
c. the scale model matches the scale of the physical forces in the wind tunnel.
d. an inexpensive scale model of the airplane is available through the local hobby shop.

Ocean waves move up and down in circles, but transmit horizontally toward the shore.

Which statement best describes a typical difference that could be found between the "analysis" and "conclusion" sections of a lab report? a) only the "conclusion" describes errors that occurred during the experiment, and only the "analysis" section suggests further research.b) only the "analysis" section includes specific data comparisons, and only the "conclusion" section suggests further research.c) only the "analysis" section discusses whether the original hypothesis was supported, and both sections include graphs of data.d) only the "conclusion section discusses whether the original hypothesis was supported, and both sections suggest further research.(the answer is b i just took the test)

Which is an important function of normal flora? a. aid with bone marrow production. b. crowd out pathogenic bacteria. c. destroy digestive track pathogens. d. manufacture iron in the bloodstream.