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.

Which of the following pairs of elements belong to the same groupa. h and he b. li and bec. c and pb d. ga and ge

Select the correct text in the passage. which sentences describe examples of sustainable living? i live in an old apartment building downtown, but my company is based in an office park on the outskirts of the city. i drive an old car that needs to be replaced. i plan to buy a hybrid for better gas mileage, but for now i am able to carpool with a couple of friends from work. the drive to the office park is about 45 minutes each way, but we do get to work in a modern building. the architects just received a leed certification for the design.

Suppose the universe were completely empty except for one object-a solid sphere moving through space of 100 km/s. what sort of path would the object be moving in? explain your answer