What method would produce disease resistant cattle in the shortest amount of time?

a.) genetic engineering
b.) gene therapy
c.) natural selection
d.) selective breeding

(giving out 25 points+brailiest, follow on twitter, and music. ly)

The midpoints? a, b, and c are marked on the histogram. match them to the indicated scores. which? scores, if? any, would be considered? unusual?

Two technicians are discussing a resistance measurement between the can-h and can-l wires. technician a says this measurement should be done with the ignition switch in the "run" position. technician b states that a measurement of 0 ohms indicates an open in the network. which technician is correct?

Yvette hangs a 2.4kg bird feeder in the middle of a rope tied between two trees. the feeder creates a tension of 480 n in each side of the the rope.