Problem: OPTIONS:
- an object gaining energy
- a lot of human deaths
- decrease stamina
- hyperthyroidism
- an object losing energy
- an object gaining momentum
- body temperature reduces
- an object going faster
Q: Fact 1: Friction causes an object to lose energy. Fact 2: Friction causes the decline of speed. Given the two facts above, the decline of speed is associated with what?
Answer: an object losing energy

Problem:OPTIONS:
- movement
- hydration
- fitness membership
- fats
- hypertrophy
- arteries
- exercise
- Proteins

Fact 1: Exercise increases a body 's strength. Fact 2: Strength is balanced with flexibility and all systems of the body are toned. Given the two facts above, what helps increase flexibility and muscle tone?
****
A: exercise

Fact 1: Dilation occurs when cell walls relax. Fact 2: Blood flow is improved by vitamin E and it causes blood vessels to dilate or expand. Given the two facts above, what happens when cell walls relax?
OPTIONS:
- evaporation
- permineralization
- preventing heat transfer
- allow growth
- it keeps an organism warm
- air cools
- Cell walls expand
- heat produced
Cell walls expand

Fact 1: Apesticide is used for protecting plants by killing insects. Fact 2: Plants are poisoned by herbicides, animals by pesticides. Given the two facts above, what doesn't protect plants?
OPTIONS:
- viruses
- smallpox
- herbicide
- steroids
- A virus
- Nematoda
- chickenpox
- cigarettes

Answer: herbicide

Question: Fact 1: Evolution is a change in the characteristics of living things over time. Fact 2: On the other hand, the environment causes all living things to adapt. Given the two facts above, _can cause evolution?
OPTIONS:
- weather
- environment
- our star
- competition
- global warming
- behavior
- sound
- rapid expansion
Answer: environment

input: OPTIONS:
- kalenchoes
- Malpighian tubes
- solid, liquid, gas
- ankles
- rocks
- tibias
- the body's largest organ
- Veins and arteries. Now, answer this question: Fact 1: Organs of excretion make up the excretory system. Fact 2: Excretory system is composed of a dorsal excretory gland and a pair of Malpighian tubules. Given the two facts above, what are organs of excretion?
A:
output:
Malpighian tubes