Arthropods with what may live in large colonies and have complex social behaviors.
Options:
- (A) fur
- (B) gills
- (C) animals
- (D) complex
- (E) Wasps
- (F) vertebrae
- (G) Flowers
- (H) wings
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Let's think first: Insects may live in large colonies and have complex social behaviors. Insects are the only arthropod to have wings. Arthropods with wings may live in large colonies and have complex social behaviors.... So the answer is [(H)]

What is the euphrates larger than?
Options:
- (A) ocean
- (B) planet
- (C) trees
- (D) sea
- (E) Inches
- (F) Sediment
- (G) stream
- (H) Length
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Let's think first: Rivers are usually larger than streams. And the fourth river is the Great River, the river Euphrates. The Euphrates is larger than a stream.... So the answer is [(G)]

An animal that travels long distances is
Options:
- (A) brown bear
- (B) dangerous
- (C) Riding a bike
- (D) warm-blooded
- (E) a barn swallow
- (F) supersonic
- (G) ground squirrel
- (H) mountain gorilla
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Let's think first: Migrants typically travel long distances. Barn swallows are Neotropical migrants. Barn swallows travel long distances.... So the answer is [(E)]

After an infection or injury to the lung, what can happen?
Options:
- (A) Destroy crops
- (B) a lot of human deaths
- (C) Plant growth is reduced
- (D) destroying life
- (E) forest is destroyed
- (F) opportunistic infections
- (G) death and devastation
- (H) negative impact
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Let's think first: Pneumonia may be caused by an infection or injury of the lungs. Opportunistic infections, such as Pneumocystis carinii pneumonia, begin to occur. Opportunistic infections may be a result of an infection or injury of the lungs.... So the answer is [(F)]

Which of the following would animals use to store energy?
Options:
- (A) fats
- (B) plants
- (C) sodium
- (D) blood
- (E) Energy
- (F) sugar
- (G) food
- (H) carcass
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Let's think first: Animals use saturated fatty acids to store energy. Fatty Acids Fatty acids are the building blocks of fats. Animals use fats to store energy.... So the answer is [(A)]

What attracts bees to the flower?
Options:
- (A) seeds
- (B) orchids
- (C) other bees
- (D) butterflies
- (E) thorns
- (F) heat
- (G) petals
- (H) pollen
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Let's think first: Petals attract pollinators to the flower. Bees are effective pollinators. Petals attract bees to the flower.... So the answer is [(G)]