Question:
Which of the following devices relies on electromagnetic radiation in the radio wave region of the spectrum for operation?
Answer:
cellular telephone
Question:
Which observation of a plant supports the inference that photosynthesis can take place?
Answer:
a green color
Question:
Compared to the amount of hereditary information in a human body cell, how much hereditary information is contained in a human sex cell?
Answer:
one-half the amount
Question:
Extinction of a species is most likely to occur as a result of
Answer:
environmental changes