Blood pumped through the systemic circuit is distributed to lower body regions such as the digestive system by________.
A. arterioles
B. carotid arteries
C. pulmonary arteries
D. pulmonary veins
E. the superior vena cava
Answer: A
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Which vertebrate organ filters blood, adjust its composition, and produces urine?
a. nephridium b. Malpighian tube c. kidney d. liver e. bladder
Meat, fruits, and vegetables could be
contaminated with E. coli strains toxic to humans when they come in contact with animal I. feces. II. urine. III. blood.
a. I only b. I and II c. II and III d. I and III e. I, II, and III
Which of the following best describes sex-linked genes?
a. They are located on the X chromosome. b. They are linked to the sex-determining gene. c. They are expressed differently based on the sex of an individual. d. They are determinants of the sex of an individual.
Ticks, lice, and mosquitoes often serve as (carriers/transporters/vectors) by hosting and transmitting pathogenic microbes.
Fill in the blank(s) with the appropriate word(s).