18. Consider a stable frog population living at carrying capacity in a pond. If an average female produces 5,000 eggs during her lifetime and an average of 250 tadpoles hatch from these eggs, how many of these tadpoles will, on average, survive to reproduce?
(A) 0
(B) 2
(C)10 to 20
(D) More than 100
答案:登入後查看
統計: A(1), B(0), C(2), D(0), E(0) #3426527
統計: A(1), B(0), C(2), D(0), E(0) #3426527