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Biology Laboratory Manual, 6/e

Darrell S. Vodopich, Baylor University
Randy Moore, University of Minnesota--Minneapolis

Exercise 18 - Human Evolution

Choose the one answer that best answers the question.


1	How many bones are in the human skull?
		A)	1
		B)	12
		C)	22
		D)	42


2	What are sutures?
		A)	Wavy lines where the bones fit together.
		B)	Projections and raised lines for muscle attachment.
		C)	A hole through which nerves and blood vessels pass.
		D)	Sockets where moveable bones articulate.


3	Because a gorilla's face and jaw protrude more forward than humans, they are said to exhibit ____.
		A)	canine diastema
		B)	foramen magnum
		C)	sutures
		D)	prognathism


4	What is the function of the brow ridge?
		A)	prevent sweat from getting into the organism's eyes
		B)	supports the upper face against the forces of chewing
		C)	attachment site for the large temporalis muscle
		D)	allows the passage of the spinal cord from the brain case


5	What is a sagittal crest usually associated with?
		A)	large braincase and weak jaws
		B)	small brain case and weak jaws
		C)	large braincase and powerful jaws
		D)	small braincase and powerful jaws


6	Which of the following structures reflects the posture of the body and the pattern of movement in hominoids?
		A)	braincase
		B)	foramen magnum
		C)	sagittal crest
		D)	canine teeth


7	Which of the following is a typical characteristic of a female skull.
		A)	smaller braincase
		B)	developed browridge
		C)	large mastoid process
		D)	presence of external occipital protuberance


8	Which of the following types of teeth are found in humans, but not in other primates?
		A)	canines
		B)	premolars
		C)	incisors
		D)	none of the above


9	In human male skulls, the mastoid process is ____.
		A)	absent
		B)	smaller than female's
		C)	larger than female's
		D)	square


10	About how long has the modern human skull remained unchanged?
		A)	1 million years
		B)	100,000 years
		C)	10, 000 years
		D)	1, 000 years

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