Oxygen will diffuse across gill membranes into the blood because _____
a. oxygen is in higher concentration in the blood compared to the water
b. oxygen is in lower concentration in the water compared to the blood
c. oxygen is in higher concentration in the water than in the blood
d. oxygen is in equal concentration in both the blood and the water
e. the gills attract oxygen chemically
ANSWER: c
You might also like to view...
Which of the following statements regarding virus taxonomy is true?
A) Viruses are classified on the basis of the taxonomy of their host organisms. B) Virus classes are well established. C) Some virus family names are derived from the name of an important member of the family. D) The species epithet is a latin descriptor of the virion structure. E) Virus classes are based on the domain of the host organism.
Which of the following is a special binding substance that enhances immugenicity and prolongs antigen retention at the injection site?
A. antibodies to toxin B. gamma globulin C. booster D. adjuvant E. "Trojan horse" recombinant vaccine
In the accompanying figure, the structure labeled “D” is the ____
a. muscle fiber b. sarcoplasmic reticulum c. mitochondria d. myofibril e. Z line
The letter “C” in the figure above represents
a. root apical meristem. b. dermal tissue. c. vascular tissue. d. ground tissues. e. ground, dermal, and vascular tissues.