A hamster, when put in endless darkness, will display activity that fits a 23-hour day. This rhythm that the hamster is displaying is a(n):

In the 23rd pair, a normal girl has:

two X chromosomes. two Y chromosomes. one X and Y chromosome. one X chromosome.

Research on Inuit Eskimos has revealed that:

A) although the Inuit have different words for types of snow then are found in English, they appear to think about snow in the same way Americans and other non-Inuit do. B) the Inuit have hundreds of different words for snow. C) the specific language the Inuit use affects the way they think about snow. D) learning to speak English changes the way Inuits think about snow.