Question

blood
□ solution
□ suspension
□ homogeneous mixture
□ heterogeneous mixture
□ colloid
□ none of the above

Explanation:

Blood is a heterogeneous mixture because its components (red blood cells, white blood cells, platelets, and plasma) are distinct and can be separated; it also acts as a suspension (cells settle over time) and a colloid (proteins like albumin are colloidal), but the most accurate broad classification here is a heterogeneous mixture, and it also fits as a suspension and colloid, but the key classification is heterogeneous mixture, and additionally, blood is a suspension and colloid, but the correct options are heterogeneous mixture, suspension, and colloid. However, the most precise primary classification is that blood is a heterogeneous mixture, a suspension, and a colloid. But among the options, the correct selections are:

• heterogeneous mixture: Blood has visible distinct components (cells, plasma) that are not uniformly distributed at a macroscopic level.
• suspension: Blood cells are large enough to settle out over time if left undisturbed.
• colloid: Plasma contains proteins (like albumin) that are colloidal-sized particles dispersed evenly.

Answer:

☑ suspension
☑ heterogeneous mixture
☑ colloid