Answer:
The correct answer is - qualitative measurements.
Explanation:
When the information about characteristics is tough to describe of define by measuring or represent numerically, qualitative measurements are used to describe it.
These measurements are carried out by information collected through all senses such as vision, hearing, touch, smell, and taste. For example softness of the skin, the color of hair.
Thus, the correct answer is - qualitative measurements.
Birds, just like humans, have a four-chambered heart.
In the small intestine, cells contain microvilli, which are tiny hair-like projections that increase nutrient absorption. These projections increase the surface area of the small intestine allowing more area for nutrients to be absorbed.