Oxygen is transported in blood most efficiently
A. by combining with hemoglobin.
B. by being dissolved in the plasma.
C. by chemical conversion to water.
D. by combining with carbon dioxide to form bicarbonate ions.
E. as a free oxygen ion or radical.
Answer: A
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Enveloped viruses ____
a. generally lyse host cells as they are released b. synthesize envelope lipids as they replicate within the host cell c. acquire their envelope as they bud from the host cell d. acquire their envelope as they enter the host cell e. always contain DNA genomes
The second line of defense includes inflammation, phagocytosis, fever, and antimicrobial proteins.
Answer the following statement true (T) or false (F)
Once a pollen grain reaches the stigma of a flower, it begins to grow a(n) ________ that pierces the style.
Fill in the blank(s) with the appropriate word(s).
A "summer cold" that lasts for weeks and is characterized by sore throat, mild fever, dry cough, and malaise may be (pneumococcal/staphylococcal/walking) pneumonia
What will be an ideal response?