The lizard and humans share a common ancestor because of the presence of a backbone and legs statement is true.
What is Evolution?
Evolution refer to the change or variation in in the characteristics of organisms over several generations and this depends on the process of natural selection.
some Organisms evolved from the same ancestors and they share some similarities in characteristics like hair, legs.
Humans and lizards evolve from same ancestors of over 320 million years ago.
Therefore, The lizard and humans share a common ancestor because of the presence of a backbone and legs statement is true.
Learn more about evolution from the link below.
https://brainly.com/question/12271572