Digestion begins in the
A) small intestine.
B) oral cavity.
C) esophagus.
D) stomach.
Answer: B
You might also like to view...
A person who lives in an area where food is severely deficient in iodine may have ___________, which presents with a swollen thyroid gland.
A. hepatitis B. goiter C. acromegaly D. diabetes E. osteoporosis
Which of the following cells are alive at maturity?
a. sieve tube members b. vessel members c. tracheids d. vessel members and tracheids e. sieve tube members and vessel members
The bicuspid (mitral) valve is located between the
a. left and right atria. b. right atrium and right ventricle. c. left and right ventricles. d. left atrium and left ventricle. e. left ventricle and the aorta.
Reproductive systems with external fertilization are most common in
A) terrestrial animals. B) populations with many more males than females. C) animals that are widely dispersed. D) aquatic animals.