Eukaryotes are first seen in the fossil record __________ years ago.
A) 200,000
B) 2 million
C) 10 million
D) 1.5 billion
Correct Answer:
Verified
Q9: Spherical bacteria are called
A) cocci.
B) bacilli.
C) spirilla.
D)
Q11: Scientists suspect that the first macromolecules to
Q11: _ consist of a core segment of
Q15: Under harsh environmental conditions,some bacteria are able
Q17: All of the following are correct about
Q18: The Miller-Urey experiment included
A) finding extraterrestrial organisms.
B)
Q19: The primary characteristic of protists is that
Q23: Bats are a healthy carrier for which
Q35: All viruses have an envelope around their
Q38: Viruses contain _ as their genetic material.
A)DNA
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