Line 1: *Insulin is a hormone that helps cells absorb sugar from the blood. Diabetes is caused by a lack of insulin. Diabetes is caused by a lack of hormone that helps cells absorb sugar from the blood.*
*(D)*
Line 2: *What is caused by a lack of a hormone that helps cells absorb sugar from the blood?
Options:
- (A) glucose
- (B) cancer
- (C) resistance
- (D) diabetes
- (E) fever
- (F) serotonin
- (G) epilepsy
- (H) Dehydration*

Logic of a solution: *Running water is better able to dissolve oxygen and nutrients than standing water. Streams and creeks provide running water. Streams and creeks are better able to dissolve oxygen and nutrients than standing water.*
*(G)*
The original question: *What is better able to dissolve oxygen and nutrients than standing water?
Options:
- (A) puddles
- (B) microorganisms
- (C) ponds
- (D) nitrogen
- (E) swamp vegetation
- (F) Veins and arteries.
- (G) streams and creeks
- (H) peachleaf willow*

Line 1: *Playing is just one of many ways that mammals and other animals learn how to behave. Pugs are mammals and mammals shed. Playing is just one of many ways that pugs learn how to behave.*
*(B)*
Line 2: *What is just one of many ways that pugs learn how to behave.
Options:
- (A) humans
- (B) playing
- (C) sleeping
- (D) growing
- (E) Movement
- (F) sound
- (G) genetics
- (H) exercise*

Logic of a solution: *Adult worms go through a major transformation to develop reproductive organs. Marine annelid worms have larvae called trochophores that swim about by means of cilia. Marine annelids go through a major transformation to be able to make larvae called trochophores that swim about by means of cilia.*
*(F)*
The original question: *Marine annelids can make a swimming larvae called what?
Options:
- (A) barnacles
- (B) survive
- (C) graptolites
- (D) epidermal
- (E) Something to move
- (F) a trochophore
- (G) fertile
- (H) permineralization*

Line 1: *Sponges are a source of food for many species of fish. Sponges are also keystone species. Keystone species are a source of food for many fish species.*
*(D)*
Line 2: *What are a source of food for many fish species?
Options:
- (A) layers of fat
- (B) bird species
- (C) human species
- (D) keystone species
- (E) Organic compounds
- (F) barnacles
- (G) gastropod shells
- (H) species of deer*

Line 1: *Most protists have motility. Protists are one celled organisms. One celled organisms can have motility.*
*(D)*
Line 2:
*What can have motility?
Options:
- (A) Small things with a microscope
- (B) gastropod shells
- (C) members of their own species
- (D) one celled organisms
- (E) Something to move
- (F) mitochondria
- (G) rocks
- (H) intestines*