The size of an unborn fetus of a certain species depends on its age. Data for Head circumference (H) as a function of age (t) in weeks were fitted using the formula H= -29.89 +1.8991 -0.3063elogt (a) Calculate the rate of fetal growth dH (b) is larger early in development (say at t= 8 weeks) or late (say at t = 36 weeks)? 1 dH (c) Repeat part (b) but for fractional rate of growth Hdt dt