A study of cuckoos found that all cuckoos sing the same song, even when they have no contact with other cuckoos. What does this indicate? A.
Cuckoos sing the song because of an external stimuli.
B.
Cuckoos sing the song because of an internal stimuli.
C.
Cuckoos must learn the cuckoo song from other cuckoos.
D.
Cuckoos are born with an innate ability to sing the song.

Many free radicals combine to form molecules that do not contain any unpaired electrons. the driving force for the radical–radical combination reaction is the formation of a new electron‑pair bond. consider the chemical equation. n(g)+no(g)⟶nno(g) n(g)+no(g)⟶nno(g) write lewis formulas for the reactant and product species in the chemical equation. include nonbonding electrons. n(g)n(g) select draw rings more erase select draw rings more erase select draw rings more erase n no(g)