Line 1: *Sweat wets the skin, and when it evaporates, it cools the body. Diaphoresis is a fancy medical term for perspiration or sweating. Perspiration wets the skin and when it evaporates it cools the body.*
*(E)*
Line 2: *Perspiration does what to the skin when it is evaporated from the skin onto the air?
Options:
- (A) reduced heat
- (B) cleans it
- (C) heats it
- (D) temperature
- (E) cools it
- (F) heat or cold
- (G) air cools
- (H) turns it to steam*
Logic of a solution: *Amphibians are the first true tetrapods, or vertebrates with four limbs. All frogs are amphibians. Animals in the frog family are the first true tetrapods.*
*(C)*
The original question: *The first tetrapods were
Options:
- (A) major threat to health
- (B) remains of prehistoric life
- (C) in the frog family
- (D) running and lifting
- (E) competing for resources
- (F) warm-blooded
- (G) objects that have mass
- (H) graptolites*
Line 1: *Evolution occurs by a process called natural selection. Adaptation is the result of natural selection. Adaptation results in evolution.*
*(C)*
Line 2: *What leads to evolution?
Options:
- (A) Plants growth
- (B) competition
- (C) Adatation
- (D) our star
- (E) Experimentation
- (F) Stagnation
- (G) environment
- (H) Information*
Logic of a solution: *Some touch receptors sense differences in temperature or pain. Heat and temperature are the same. Some touch receptors sense differences in heat or pain.*
*(A)*
The original question: *Some touch receptors sense a difference in pain or what?
Options:
- (A) heat
- (B) cold
- (C) skin
- (D) nerves
- (E) color
- (F) contact
- (G) smell
- (H) motion*
Line 1: *Sweating reduces body heat. Sweat is made of salt and water. Saltwater excretion reduces body heat.*
*(H)*
Line 2: *Saltwater excretion reduces what?
Options:
- (A) emissions
- (B) dehydration
- (C) light energy
- (D) bacteria
- (E) sweat
- (F) energy usage
- (G) evaporation
- (H) body heat*
Line 1: *Arteries generally carry oxygen-rich blood. Arteries carry blood away from the heart. Something that brings blood away from the heart carries oxygen-rich blood.*
*(H)*
Line 2:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
*What direction does something that has oxygen-rich blood go?
Options:
- (A) mouth of rivers
- (B) the body's largest organ
- (C) move to different locations
- (D) Earth orbiting the Sun
- (E) Move to another area
- (F) to move people
- (G) animal transport
- (H) Away from the heart*