Please help a girl out! Need the answer is 5-10 minutes:(

Cells of an organism tell each other when predators are near.

The soviet union beat the us to the first successful launch, with the october 4, 1957, orbiting of sputnik 1, and later beat the us to have the first human in earth orbit, yuri gagarin, on april 12, 1961. the "race" peaked with the july 20, 1969, us landing of the first humans on the moon with apollo 11

C.25-28.. . .