One adaptation that is unique to marine mammals is they (2 points)

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)

What do scientists need to look at before developing an argument

Which of these substances does not protect against invaders in the nonspecific immune response? a. saliva b. mucus c. tears d. urine