Time = distance/speed Distance
Average
x Time
speed
a) A horse runs at an average speed of 15km/hour for 30km. How
long does this take the horse?
b) A fish swims 30 metres, swimming at an average speed of 6m/s.
How long did this take?

Which system revise and send electrical signals throughout the body

The normal shape of an enzyme is as shown in structure a. if the enzyme’s shape changes to that shown in structure b, what are two consequences of this change?

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.