Biology · Evolution and Systematics
Which of the following features establishes stromatolites as a reliable source of early geological evidence for life on Earth?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Conical limestone mounds created exclusively by reduced volcanic geothermal activity
- 2Biogenic laminated structures that have been formed by the activity of phototrophic microbial mats✓
- 3Layered accretion structures formed purely as a result of abiotic mineral precipitation
- 4Fossilized bones that have been deeply embedded in a silica-rich matrix
Correct answer
Biogenic laminated structures that have been formed by the activity of phototrophic microbial mats
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