Answer:
In the English language, the word scent is used specifically for a kind of smell that is pleasant or has fragrance.
On the other hand, in the English language, the word smell is used to describe any kind of odour. The odour might be pleasant or not pleasant. It can be good as well as bad. Smell refers to any kind of smell which our olfactory receptors can determine.
Explanation:
In the majority of cases, the extra copy of chromosome 21 comes from the mother in the egg.
In a small percentage (less than 5%) of cases, the extra copy of chromosome 21 comes from the father through the sperm.
In the remaining cases, the error occurs after fertilization, as the embryo grows.
Independent variable: Temperature
Levels: Room temperature
Freezing point 0C
Boiling point 100C
Dependent variable: breaking point of rubber bands measured in certain amount of temperature
The left ventricle is responsible for pumping oxygenated blood throughout the entire body, which requires a lot of work and pressure, hence why it is super thick.
