Logic of a solution: *Producers are organisms that produce food for themselves and other organisms. Green plants are producers . Green plants are organisms that make food for themselves and other organisms.*
*(B)*
The original question: *What are organisms that make food for themselves and other organisms?
Options:
- (A) mushrooms
- (B) green plants
- (C) plants
- (D) mammals
- (E) agriculture
- (F) honeybees
- (G) photosynthesis
- (H) animals*

Line 1: *Balance is the ability to sense and maintain body position. Balance is important in skiing and balance is important in life. In order to ski, it is necessary to maintain body position.*
*(G)*
Line 2: *What can maintaining body position help you to do?
Options:
- (A) work
- (B) play
- (C) move
- (D) live
- (E) rest
- (F) Lift
- (G) ski
- (H) fly*

Logic of a solution: *Sperm had to swim from male to female reproductive organs for fertilization. Gametes in males are called sperm, and in women commonly referred to as eggs. Male gametes swim from male to female reproductive organs for fertilization.*
*(F)*
The original question: *What swims from male to female reproductive organs in fertilization?
Options:
- (A) ovaries
- (B) barnacles
- (C) fur seals
- (D) eggs
- (E) gastropod shells
- (F) male gametes
- (G) kinetic energy
- (H) female gametes*

Line 1: *Biodiversity generally increases from the poles to the equator. Biodiversity contributes to ecosystem complexity. Ecosystem complexity generally increases from the poles to the equator.*
*(F)*
Line 2: *Where is ecosystem complexitiy generally least?
Options:
- (A) humans disturb it
- (B) frontal zones
- (C) in lakes
- (D) at the ocean
- (E) our planet
- (F) at the poles
- (G) mouth of rivers
- (H) at the equator*

Logic of a solution: *Fish have a centralized nervous system with a brain. Nervous A reptile has a brain and nervous system. Fishes and reptiles have brains.*
*(F)*
The original question: *What organs do both fishes and reptiles have?
Options:
- (A) legs
- (B) they all walk on land
- (C) gills
- (D) the eyes
- (E) protected
- (F) brains
- (G) alveoli
- (H) vision*

Logic of a solution: *DNA contains genetic instructions for proteins, and RNA helps assemble the proteins. Genetic memory is inherited. DNA contains inherited instructions for proteins.*
*(D)*
The original question:
*What type of acid contains inherited instructions for proteins?
Options:
- (A) HIV
- (B) p53
- (C) genetic acids
- (D) DNA
- (E) SNPs
- (F) protein acid
- (G) RNA
- (H) two*