Problem:OPTIONS:
- Most plants
- infectious
- viruses
- bacteria
- Absorb light
- insects
- important habitats
- invertebrates

Fact 1: Animals are a kingdom of multicellular eukaryotes. Fact 2: Invertebrates are the majority of the animal kingdom. Given the two facts above, the majority of multicellular eukaryotes are:?
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A: invertebrates

Problem:OPTIONS:
- a landslide
- Sediment
- a mountain
- a volcano
- soils
- rock
- flooding
- a river

Fact 1: Erosion causes a river to become deeper and wider. Fact 2: Weathering and erosion continue to shape it today. Given the two facts above, weathering causes what to become deeper and wider?
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A: a river

Problem:OPTIONS:
- solid, liquid, gas
- microorganisms
- electromagnetic energy
- animal behavior
- biological diversity
- an object
- an organism's body
- metabolic reaction

Fact 1: Ethologists usually study how animals behave in their natural environment. Fact 2: Ethologists are scientists who study animals in their natural habitats. Given the two facts above, what do scientists study?
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A: animal behavior

Problem:OPTIONS:
- density
- west
- signs of life
- rain
- waves
- Vapor
- Inches
- snow

Fact 1: Precipitation falls on the windward side of the mountain range. Fact 2: Rain is also known as precipitation. Given the two facts above, what falls on the windward side of the mountain range?
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A:
rain