<span>The correct answer is C, because the healthy waist size for women (with a BMI of at least 25, common standard), is 35 inches. Laura's waist size is 39 inches, leading her to a higher risk of certain diseases.</span>
Exchange systems help primarily with:
a. balance.
Answer: E). Both b and d
Explanation:
Operant behaviour or conditioning which is also known as Instrumental conditioning is a type of learning process in which the strength of an organism or individuals behaviour is modified by punishment or reinforcement either positively or negatively.
Operant behavior is said to be "Voluntary" because the responses of the organism are under its control.