21.   Those drugs act at different stages in the viral reproductive cycle.

22.   But Australia hopes releasing mass-reared sterile males into the clutches of wild females will cause the pest to buzz off by disrupting the reproductive cycle.

23.   Corn is now in its pollination stage, a reproductive cycle in which kernels form.

24.   The catch was important because scientists knew very little about the life of the white pointer, in particular its reproductive cycle.

25.   The drugs block a key enzyme used by the virus in its reproductive cycle, and raise the level of critical immune cells depleted by AIDS.

26.   The next major step, he said, is to put mice or rats through a full reproductive cycle in space.

27.   They are also used in animal husbandry to improve body weight and reproductive cycles.

28.   Transporting males is costly and difficult, and doing so with females disrupts their reproductive cycles.

29.   But monkeying around with the reproductive cycle of frisky and ferocious baboons will undoubtedly have its own problems.