<Tr> <Td> <Ul> <Li> Saturated fat </Li> <Li> Unsaturated fat <Ul> <Li> Monounsaturated fat <Ul> <Li> ω − 7 </Li> <Li> ω − 9 </Li> </Ul> </Li> <Li> Polyunsaturated fat <Ul> <Li> ω − 3 </Li> <Li> ω − 6 </Li> </Ul> </Li> <Li> Trans fat </Li> <Li> Interesterified fat </Li> </Ul> </Li> </Ul> </Td> </Tr> <Ul> <Li> Saturated fat </Li> <Li> Unsaturated fat <Ul> <Li> Monounsaturated fat <Ul> <Li> ω − 7 </Li> <Li> ω − 9 </Li> </Ul> </Li> <Li> Polyunsaturated fat <Ul> <Li> ω − 3 </Li> <Li> ω − 6 </Li> </Ul> </Li> <Li> Trans fat </Li> <Li> Interesterified fat </Li> </Ul> </Li> </Ul> <Li> Unsaturated fat <Ul> <Li> Monounsaturated fat <Ul> <Li> ω − 7 </Li> <Li> ω − 9 </Li> </Ul> </Li> <Li> Polyunsaturated fat <Ul> <Li> ω − 3 </Li> <Li> ω − 6 </Li> </Ul> </Li> <Li> Trans fat </Li> <Li> Interesterified fat </Li> </Ul> </Li> <Ul> <Li> Monounsaturated fat <Ul> <Li> ω − 7 </Li> <Li> ω − 9 </Li> </Ul> </Li> <Li> Polyunsaturated fat <Ul> <Li> ω − 3 </Li> <Li> ω − 6 </Li> </Ul> </Li> <Li> Trans fat </Li> <Li> Interesterified fat </Li> </Ul>

What are the necessary life functions for humans and many other animals