The question of what makes a hominin based on morphological traits has been debated by physical anthropologists for some time. Our author writes two obligate behaviors of what makes a hominin: Group of answer choices divergent big toe and claws bipedalism and nonhoning chewing knuckle walking occiput and temporal

bipedalism and non-honing chewing

Explanation:

Although you did not present the text to which the question refers, we can confirm that two mandatory characteristics in a hominid are bipedal locomotion (also known as bipedalism) and non-honing chewing.

The hominid was a group of great primates that was one of the ancestors of the human race. As an ancestor, he had characteristics similar to the characteristics we have today. Among these characteristics we can mention the movement on two legs, also known as bipedalism and non-honing chewing.

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d. i assume the underlined word is "role." reformat if it isn't.

explanation:

role is closest to part because when replacing words, "playing a vital decision," "playing a vital activity," and "playing a vital dollar" don't make logical sense. the only meaningful choice is "playing a vital part."

this fits one of merriam-webster's definitions of role: "a function or part performed especially in a particular operation or process."