Which helps prevent errors in DNA replication?

Skulls of (1) modern gorilla, (2) australopithecus afarensis, (3) homo erectus, (4) homo neanderthalensis, (5) homo sapiens based on the diagram, which of the following best describes ways in which the physical appearance of h. neandertalensis and h. sapiens differ? (2 points)

Drag each tile to the correct location. match each trait that an organism displays to a reproductive strategy.

Wich level of organization includes all the other levels or organizations