Electric power is measured in units of
A. watts.
B. joules per second.
C. both are equivalent
D. none of the above
Answer: C
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Two billion years ago, radioactive heat production was
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Which of the following is true?
A) Both embryonic and adult stem cells are usually pluripotent. B) Both embryonic and adult stem cells are usually multipotent. C) Embryonic stem cells are usually pluripotent, but adult stem cells are usually multipotent. D) Embryonic stem cells are usually multipotent, but adult stem cells are usually pluripotent.