Which phrase describes how vestigial structures provide evidence that suggests a common ancestor and supports that life changes over time? Question 3 options:

some animals exhibit similar structures, possibly due to a common ancestor

some animals exhibit similar stages of embryonic development

some animals exhibit structures that are no longer used for any purpose

some fossils exhibit similar biological proteins

How is electrolysis most commonly used to produce an energy source? a - splitting water molecules produces oxygen, which organisms breathe to fuel their bodies. b - splitting water molecules produces hydrogen gas, which is used to power machines through hydrogen fuel cells. c - splitting carbon dioxide molecules produces coal, a form of carbon that can be burned to produce heat. d - splitting carbon dioxide molecules produces natural gas, which can be burned to generate electricity in power plants.