Line 1: *Sight is the ability to sense light, and the eye is the organ that senses light. Light is made of photons . The eye is an organ that can sense photons.*
*(B)*
Line 2: *What does the organ of the eye sense?
Options:
- (A) Gluons
- (B) Photons
- (C) Neutrons
- (D) Energy
- (E) heat
- (F) distance
- (G) sunlight
- (H) Sound waves*

Logic of a solution: *Climate influences plant growth, biodiversity, and adaptations of land organisms. Climates are determined mostly by temperature. Temperature influences plant growth, biodiversity, and adaptions of land organisms.*
*(C)*
The original question: *What influences plant growth, biodiversity, and adaptations of land organisms?
Options:
- (A) the environment
- (B) anatomy
- (C) temperature
- (D) Summer
- (E) speed of growth
- (F) lifespan
- (G) weather changes
- (H) global warming*

Line 1: *Amphibians have permeable skin that easily absorbs substances from the environment. Natural Toxins Toxins are poisonous substances from bacterias, plants or animals. Amphibians have permeable skin that can easily absorb toxins from bacterias, plants or animals.*
*(B)*
Line 2: *Why can amphibians easily absorb toxins?
Options:
- (A) salamanders
- (B) permeable skin
- (C) hydrate their cells
- (D) it needs them
- (E) poisonous frogs
- (F) Pesticides
- (G) cold blooded
- (H) bending light rays*

Logic of a solution: *Evaporation of sweat uses energy, and the energy comes from body heat. When sweat is evaporated into the air, it provides additional cooling. Cooling uses energy, and the energy comes from body heat.*
*(D)*
The original question: *Energy that comes from body heat can help with
Options:
- (A) recovery
- (B) commuting
- (C) movement
- (D) cooling
- (E) strength
- (F) stay warm
- (G) health
- (H) motion*

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*

Line 1: *Trees have woody stems covered with bark. On the outside is a protective skin of bark made mainly of cork. Trees have woody stems covered with protective skin.*
*(C)*
Line 2:
*Trees have woody stems covered with what?
Options:
- (A) heat energy
- (B) thin skin
- (C) protective skin
- (D) skinny cells
- (E) white skin
- (F) Chlorophyll
- (G) Organic compounds
- (H) looseness*