Why are massive main sequence stars not likely to have planets that contain life?
A) The life zones around these stars are too small.
B) These stars would sweep away all of the material from which planets could form.
C) These stars are too hot to allow water to exist as a liquid on any planets that might form.
D) These stars are on the main sequence for too short a time to allow life to evolve.
Correct Answer:
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Q2: The "framework" of molecules important for life
Q4: The DNA molecule can be altered
A) by
Q5: The Miller experiment created
A) life.
B) artificial proteins.
C)
Q6: Which of the answers below is NOT
Q7: A cell's DNA molecules are constructed of
A)
Q8: From which of these planets do we
Q9: Current searches for extraterrestrial intelligence use radio
Q10: The stars most likely to have inhabited
Q11: Life
A) reproduces itself.
B) contains information necessary for
Q35: _ is a segment of a chromosome
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