Leukocytes generally make up 6-8% of the total blood volume.

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Multiple Choice

Leukocytes generally make up 6-8% of the total blood volume.

Explanation:
Leukocytes occupy a very small portion of blood—about 1% of total blood volume. The vast majority of blood is red blood cells and plasma, with leukocytes forming only the thin buffy coat after centrifugation. So a statement claiming they make up 6-8% of blood volume is not accurate. In most mammals used in lab settings, the typical leukocyte fraction remains around 0.5-2%, commonly cited as about 1%. The options suggesting approximately 1-2% are closest to the real value, while 20-30% is far too high.

Leukocytes occupy a very small portion of blood—about 1% of total blood volume. The vast majority of blood is red blood cells and plasma, with leukocytes forming only the thin buffy coat after centrifugation. So a statement claiming they make up 6-8% of blood volume is not accurate. In most mammals used in lab settings, the typical leukocyte fraction remains around 0.5-2%, commonly cited as about 1%. The options suggesting approximately 1-2% are closest to the real value, while 20-30% is far too high.

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