An investigation was set up to determine the effect of various surfaces on the amount of timeit takes a snail to move between two points. A ramp was made, covered with a piece of glass,and placed on a table at a 25-degree angle. Two lines, 15 centimeters apart, were drawn onthe glass. A snail was placed on the upper line, and a stopwatch was used to measure the2)amount of time it took the snail to move to the lower line. The results were recorded in a datatable. The investigation was repeated using sandpaper and cardboard on the surface of theramp.What must be done to show that the results of this investigation are valid?A)The ramp must be replaced with a log found in the habitat of the snail.B)The angle of the ramp must be increased to 35 degrees.C)The investigation must be repeated several times.D)The times in the data table must be averaged.

Good experiment should be clear and reproducible, repeatable. Variables and control should be proper…

it takes a snail to move between two points. A ramp was made, covered with a pie and placed on a table at a 25-degree angle. Two lines, 15 centimeters apart, wer the glass. A snail was placed on the upper line, and a stopwatch was used to m amount of time it took the snail to move to the lower line. The results were recorde table. The investigation was repeated using sandpaper and cardboard on the sur ramp. What must be done to show that the results of this investigation are valid? The ramp must be replaced with a log found in the habitat of the snail. The angle of the ramp must be increased to 35 degrees. The investigation must be repeated several times. The times in the data table must be averaged.

it takes a snail to move between two points. A ramp was made, covered with a pie and placed on a table at a 25-degree angle. Two lines, 15 centimeters apart, wer the glass. A snail was placed on the upper line, and a stopwatch was used to m amount of time it took the snail to move to the lower line. The results were recorde table. The investigation was repeated using sandpaper and cardboard on the sur ramp. What must be done to show that the results of this investigation are valid? The ramp must be replaced with a log found in the habitat of the snail. The angle of the ramp must be increased to 35 degrees. The investigation must be repeated several times. The times in the data table must be averaged.

Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

Section: Chapter Questions

Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

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