Ques: Answer the question below:   When the villagers are living longer, the food source is likely great or small?    Assuming that:  More recently, the death rate has fallen because of the availability of more food and medical advances.
Ans: great

Ques: Answer the question below:   If Ben exercises daily, and Anna exercises only weekly, who has a stronger heart Ben or Anna?    Assuming that:  When a person exercises regularly, and is fit, the heart undergoes certain long-term adaptations. The heart muscle gets stronger, and expels more blood with each contraction.
Ans: Ben

Ques: Answer the question below:   Letting a stretched a rubber band become looser decreases or increases its elastic potential energy?    Assuming that:  The farther the object is stretched or compressed, the greater its elastic potential energy is.
Ans: decreases

Ques: Answer the question below:   Will is smoking a cigarette. This causes more or less oxygen to be available for diffusion in his lungs, so less oxygen will be absorbed into his blood?    Assuming that:  Smoking reduces the amount of oxygen available for diffusion at the lungs, so less oxygen gets absorbed and blood is oxygenated to a lesser degree.
Ans:
less