Travis notes that his prediction is significantly lower than his calculated velocity. which error explains this difference? a) he forgot to account for friction. b) he forgot to zero the balance and found a weight for the marble that was too low. c) he weighed the marble in a weighing dish and failed to account for the mass of the weighing dish. d) he didn't position the photogate correctly and got the time required for the top of the marble to pass through, rather than to the middle.

Two students are working together on an experiment that measures the effect of different liquid fertilizers on the thickness of plants’ stems. which is most likely to result in the greatest amount of error in their scientific experiment? a.one student measures the plant stem widths by using calipers. the other student measures the widths of the same plant stems again by using a different pair of calipers. b.one student measures the plant stem widths by using calipers. the other student types the measurements as they are taken into a computer spreadsheet. c.one student weighs liquids for the experiment by using a calibrated scale. the other student weighs liquids for the experiment by using a different calibrated scale.

The carrier molecules of the electron transport system are located in the

When a plant is genetically identical to its parent plant what is this called