Which of the following helped adapt the human skull for bipedalism compared with an ape’s skull?
A. The foramen magnum is more posterior.
B. The foramen magnum is more superior.
C. The face is flatter.
D. There is more weight anterior to the occipital condyles.
C. The face is flatter.
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Answer the following statements true (T) or false (F)
1. The electrolyte iodine is important in the production of thyroid hormones. 2. The electrolyte iron is important in the production of hemoglobin. 3. Where sodium goes, water follows. 4. The most abundant positive ion in the blood is calcium. 5. The most abundant negative ion in the blood is chloride.
The testes location outside of the abdominal cavity in the scrotal sac
a. permits spermatogenesis b. protects the gonads against injury c. permits testosterone secretion d. maintains them at a higher than normal body temperature for normal testicular function e. permits capacitation of sperm
Almost all sensory signals pass through which structure on the way to the cerebrum?
A. Thalamus B. Corticospinal tracts C. Corpus callosum D. Hypothalamus E. Tectal plate
Which of the following statements is true?
A. Collagen fibers provide strength to dense connective tissue. B. Dense connective tissue has a fluid matrix. C. Mast cells are found in abundance in dense connective tissue. D. Elastic tissue is flexible, but not stretchy. E. Areolar tissue is tightly packed.