True or false: Opisthokonts are a monophyletic group (a clade) True False Question 46 Why is Chemoheterotrophy NOT a good synapomorphy of Metazoa (Animalia)? Most animals are actually autotrophs Choanoflageilates that are NOT animals also are chemoheterotrophis The most recent (last) common ancestor of all Metazoa was a photoautotroph It is a good synapomorphy, as it is something that all animals have.