If brain development is linked to cephalization (head formation), which could be

Question

If brain development is linked to cephalization (head formation), which could be a reasonable timescale for the evolution of the first brain and why? a.4.2 bya because that is when life originated b.200,000 years because that is when Homo sapiens evolved c.2.0 bya because that is when the first eukaryote evolved d.430 mya because that is when animals colonized land e.541 mya because that is when the first animals are present in the fossil record If brain development is linked to cephalization (head formation), which could be a reasonable timescale for the evolution of the first brain and why? a.4.2 bya because that is when life originated b.200,000 years because that is when Homo sapiens evolved c.2.0 bya because that is when the first eukaryote evolved d.430 mya because that is when animals colonized land e.541 mya because that is when the first animals are present in the fossil record If brain development is linked to cephalization (head formation), which could be a reasonable timescale for the evolution of the first brain and why? a.4.2 bya because that is when life originated b.200,000 years because that is when Homo sapiens evolved c.2.0 bya because that is when the first eukaryote evolved d.430 mya because that is when animals colonized land e.541 mya because that is when the first animals are present in the fossil record

Explanation / Answer

541 Mya because that is when the first animals are present in the fossil record the first brsbr appears 550 years ago with fossil brain tissue present in the site of expotional preservation human brain size has been trending upwards since 2 million years ago so ans is: E

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