Which of the following occurs in the lungs?
A) Air loses all of its oxygen.
B) Oxygen and carbon dioxide move from a lower concentration to a higher concentration.
C) Some of the oxygen in the air moves into the blood, and some of the carbon dioxide in the blood moves into the air.
D) As oxygen-poor blood travels through the lungs, it releases all of its carbon dioxide.
E) Gases move by bulk flow into and out of the blood.
C
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Kidney function is linked to all of the following except:
1.blood pressure 2.osmolarity of body fluids 3.pH of body fluids 4.the body’s water balance 5.All of these are linked to kidney function
Which characteristic of water makes the existence of pH possible?
a. ionization b. polarity c. adhesion d. cohesion e. hydrophobicity
Mutation and migration introduce new alleles into populations. What is the most likely principal force that will shift allelic frequencies within large populations?
What will be an ideal response?
____ are the major producers in the ocean food chain.
A. Benthic organisms B. Phytoplankton C. Fungi D. Water molds