If jeff is walking 2 mph, how far will he be able to travel in 30 minutes

Speed is the ratio of the distance of an object moves to

Can happen anywhere along the spine if the neural tube does not close all the way. the backbone that protects the spinal cord does not form and close as it should. this often results in damage to the spinal cord and nerves. a) cleft palate b) spina bifida c) encephalocele d) down's syndrome

If it turned out dinosaurs were colorblind, how would this affect some assumptions scientists have made about them?