The _______ gives rise to the _____.

A) mesoderm; digestive glands
B) endoderm; muscular system and skeletal system
C) ectoderm; nervous system and epidermis
D) endoderm; mesoderm
E) mesoderm; endoderm


Answer: C) ectoderm; nervous system and epidermis

Anatomy & Physiology

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Through which root of a spinal nerve does visceral sensory information arrive?

A) anterior root B) posterior root C) anterior root if the sensory receptors are on the anterior portion of the body and posterior root if the sensory receptors are on the posterior surface of the body D) anterior root if the sensory receptors are superior to the spinal cord and posterior root if the sensory receptors are inferior to the spinal cord E) both anterior root and posterior root can receive visceral sensory information

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Stem cells in the testes are the

A) spermatogonia. B) spermatozoa. C) spermatids. D) primary spermatocytes. E) haploids.

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The crown of the tooth is covered by ________, the hardest substance in the body

A) cement B) enamel C) bone D) dentin

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Contact digestion takes place in/at the ________.

A. intestinal crypts B. gastric pits C. surface of the gastric mucosa D. cytoplasm in the cells of the small intestine E. brush border of the small intestine

Anatomy & Physiology