Question 15 (Essay Worth 7 points) (05.04 HC)
The diagram below shows the branching tree diagram for humans. The text box below it shows the set of derived shared characteristics for the branching tree.
Perch
Frog
Pigeon
Rats
Human
Common
Ancestor
Derived Shared Characteristic
Lives on land during all life stages, Jaws, Walking on two
legs, Mammary glands and hair, Four limbs
Look at the possible derived shared characteristics, shown in the text box. Think about where these should be placed along the branching tree diagram. Where in the
branching tree would you most likely write jaws? Explain your answer

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.