Earth has supported life for approximately
A) 20 billion years.
B) 3.8 - 3.7 billion years.
C) 1.5 billion years.
D) 700 - 800 million years.
Correct Answer:
Verified
Q60: Microspheres
A) have a boundary membrane.
B) are formed
Q61: A probable sequence of the evolution
Q62: The first cells were probably
A) Eukaryotic.
B) Archaea.
C)
Q63: According to the endosymbiotic theory, _ evolved
Q64: Chloroplasts
A) contain bacterial type DNA.
B) contain bacterial
Q66: In the origin and development of the
Q67: Which of the following supports the idea
Q68: According to the currently popular scientific theory
Q69: The spontaneous generation of living things from
Q70: According to the currently popular scientific theory
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