Although blood is a fluid, nearly half its volume is composed of cells. The most numerous cells are _________. The remainder of the cells are_________, which help the body defend itself against foreign particles and microorganisms.

A) erythrocytes : leukocytes
B) leukocytes : erythrocytes
C) platelets : leukocytes
D) erythrocytes : platelets

Question

Although blood is a fluid, nearly half its volume is composed of cells. The most numerous cells are _________. The remainder of the cells are_________, which help the body defend itself against foreign particles and microorganisms.

A) erythrocytes : leukocytes
B) leukocytes : erythrocytes
C) platelets : leukocytes
D) erythrocytes : platelets

Quizplus · Accepted Answer

Erythrocytes, or red blood cells, are the most numerous cells in the blood, responsible for transporting oxygen. Leukocytes, or white blood cells, make up the remainder of the cells and are crucial for the body's defense mechanisms.

Although Blood Is a Fluid, Nearly Half Its Volume Is