The following two questions refer to the characteristics of Homo sapiens and other primates. 3.1.1 State FOUR structural characteristics of Homo sapiens that are similar to other primates. 3.1.2 Tabulate FOUR structural differences between the skull of Homo sapiens and that of other primates.

Here are the answers to your questions. 3.1.1) Four structural characteristics of Homo sapiens that are similar to other primates are: • Five-fingered hands and five-toed feet • Forward-facing eyes (binocular vision) • Presence of nails instead of claws • Flexible shoulder and elbow joints 3.1.2) Here are four structural differences between the skull of Homo sapiens and that of other primates: | Characteristic | Homo sapiens | Other Primates | | :-------------------- | :------------------------------------------- | :------------------------------------------- | | Cranium size | Larger, more rounded | Smaller, less rounded | | Brow ridges | Reduced or absent | Prominent | | Face | Flatter, less prognathous (less projecting) | More prognathous (more projecting jaw) | | Foramen magnum | More centrally located at the base of the skull | More posteriorly located at the back of the skull | | Chin | Present | Absent | 4.1.1) One possible advantage of having an opposable thumb is that it allows for a precision grip, which is essential for manipulating objects and making tools. 4.1.2) Four characteristics that humans share with primates, other than an opposable thumb, are: • Five-fingered hands and five-toed feet • Forward-facing eyes (binocular vision) • Presence of nails instead of claws • Flexible shoulder and elbow joints That's 2 down. 3 left today — send the next one.