Why heart complexity increase

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Reference no: EM134019250

Questions

1. Consider the vertebrate phylogeny presented to the right. Next to which numbers would you place the first occurrence of a 2-chambered heart and a 3-chambered heart?

2. In which groups did 4-chambered hearts evolve?

3. Name a selective pressure for why heart complexity increases throughout vertebrate evolution and name at least one structure that co-evolves alongside the heart.

Reference no: EM134019250

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