Timur and Juan are playing basketball. Timur shoots the ball and Juan blocks the shot. Timur says, "Wow, I didn't realize how tall you were until you did that!" Timur's comment refers to Juan's:

phenotype

Explanation:

The phenotype of an individual or an organism are the set of traits or characteristics that can be  observed. It explains an organism's physical structure or morphology, behavior, developmental processes and other observable properties or characteristics.

Examples of phenotype include, height, hair color, eye color, skin color and other observable biochemical characteristics like hormone levels.

Timur commented on how tall Juan was, because the height is observable.

the use of electrical signals that transit messages is know as

changes in factors like average income and preferences can cause an entire demand curve to shift right or left. this causes a higher or lower quantity to be demanded at a given price. demand curves relate the prices and quantities demanded assuming no other factors change. it is important for consumers to know this information, because it is crucial for them to know what they can afford and can't afford. i hope this .