Within any large animal population, there is a variety of traits. and between different animal populati. ons, there is a variety of traits a. never, always b. always, always c. sometimes, sometimes d. never, sometimes

Flock x flock y flock z total pieces of food eaten (from previous page) 147 93 60 food percentage* % % % simulated number of birds in flock for 3rd generation** * divide each flock's total pieces of food by 300, the total number of pieces of food eaten. ** multiply the food percentage for each flock by the total number of birds (30).