Logic of a solution: *Vertebrates are animals that have a backbone. Vertebrates generally have a backbone called the spinal column. Vertebrates are animals that have a spinal column in their skeletal system.*
*(B)*
The original question: *If an animal has a spinal column in their skeletal system what is it called?
Options:
- (A) skeletal animal
- (B) vertebrate
- (C) A Greek letter
- (D) invertebrated
- (E) organ
- (F) critical organs
- (G) spined animal
- (H) epidermal*
Line 1: *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)*
Line 2: *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*
Logic of a solution: *Populations of viruses do not grow through cell division because they are not cells. Mitosis is cell division. Populations of viruses do not grow through mitosis because they are not cells.*
*(G)*
The original question: *Which of the following do not grow using mitosis?
Options:
- (A) skin cells
- (B) genus
- (C) fungi
- (D) lung cells
- (E) blood cells
- (F) parasites
- (G) viruses
- (H) bacteria*
Line 1: *Grasses supply most of the food consumed by people worldwide. Grasses are very distinctive plants. Plants supply most of the food consumed by people worldwide.*
*(E)*
Line 2: *Most of the food consumed by people worldwide comes from
Options:
- (A) humans
- (B) trees
- (C) Energy
- (D) animals
- (E) plants
- (F) vitamin C
- (G) honeybees
- (H) Earth*
Logic of a solution: *Most salamanders use their sense of smell to find a mate. To couple in sexual union, to be matched or mated. Most salamanders find sexual partners by their sense of smell.*
*(G)*
The original question: *How do salamanders usually find sexual partners?
Options:
- (A) mouth of rivers
- (B) It helps them survive
- (C) interact
- (D) it needs them
- (E) competition
- (F) movement
- (G) sense of smell
- (H) heat produced*
Logic of a solution: *All chemical reactions require activation energy to get started. Fire is a chemical reaction. Fire requires activation energy to get started.*
*(B)*
The original question:
*What does fire require to get started?
Options:
- (A) an engine
- (B) activation energy
- (C) water
- (D) energy usage
- (E) direct energy
- (F) dogs
- (G) activated almonds
- (H) adding heat*