Biology, 03.12.2020 20:20 blaizelange4296

The evolution of new organs usually builds on preexisting structures that are modified in form and sometimes function. The embryos of fish, amphibians, reptiles, birds, and mammals all have pharyngeal pouches or gill slits. These pouches develop into gills in adult fish and they are used to absorb oxygen from their watery environment. These same pouches become parts of the in humans. a) eyes and lungs
b) ear and throat
c) eyes and nose
d) lungs and heart

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The evolution of new organs usually builds on preexisting structures that are modified in form and s...