Q1. In a Rat, Which abdominal arteries are paired? Which are singular?

b. Again, in Rats, Which artery is a extensively different length between mature males and females? Why?

C. in a Rat, Which veins are paired? Which are singular?

Q2. A certain instant camera determines the distance to subject by sending out a sound wave and measuring the time required for the wave echo to return to the camera. How long could it take the sound wave to return to the camera if the subject were 2.68 m away? The speed of sound is 343 m/s.