What evidence supports the idea that life could have arrived on Earth from extraterrestrial sources?
A. Many of the other planets have oxygen in their atmosphere.
B. Living things have been found on Mars.
C. Many meteorites have been found to contain organic molecules.
D. None of these answers is correct.
C. Many meteorites have been found to contain organic molecules.
Biology & Microbiology
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What is genetic diversity? Why is it important to maintain genetic diversity?
What will be an ideal response?
Biology & Microbiology
The trapezius, levator scapulae, rhomboideus and serratus anterior function _____.
Fill in the blank(s) with the appropriate word(s).
Biology & Microbiology
What is the common influence of ultraviolet light on DNA?
What will be an ideal response?
Biology & Microbiology
Homo rudolfensis was discovered by
A. Raymond Dart. B. Richard Leakey. C. Charles Darwin. D. Donald Johanson.
Biology & Microbiology