Question 1 Select the three characteristics of blood. Select 3 Answers Blood is a type of epithelial tissue. pH of blood is slightly alkaline with a pH of 7.35 to 7.45 . Three formed elements of blood are leukocytes, erythrocytes, and platelets. Percentage of erythrocytes in a sample of blood is known as the hematocrit.

To identify the three correct characteristics of blood from the options provided, let's analyze each statement: 1. **Blood is a type of epithelial tissue.** - This statement is **false**. Blood is classified as a connective tissue, not epithelial tissue. 2. **pH of blood is slightly alkaline with a pH of 7.35 to 7.45.** - This statement is **true**. The normal pH range of blood is indeed slightly alkaline, falling between 7.35 and 7.45. 3. **Three formed elements of blood are leukocytes, erythrocytes, and platelets.** - This statement is **true**. The three main formed elements of blood are leukocytes (white blood cells), erythrocytes (red blood cells), and platelets (thrombocytes). 4. **Percentage of erythrocytes in a sample of blood is known as the hematocrit.** - This statement is **true**. The hematocrit is the proportion of blood volume that is occupied by erythrocytes. Based on this analysis, the three correct characteristics of blood are: - pH of blood is slightly alkaline with a pH of 7.35 to 7.45. - Three formed elements of blood are leukocytes, erythrocytes, and platelets. - Percentage of erythrocytes in a sample of blood is known as the hematocrit.