Where can amphibians that move like earthworms be found?
Options:
- (A) moist bodies
- (B) body water
- (C) storing water
- (D) during the day
- (E) four limbs
- (F) moist soil
- (G) dry areas
- (H) high altitudes
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Let's think first: Caecilians can be found in moist soil near rivers and streams in tropical regions. Caecilians are amphibians that move just like earthworms. Amphibians that move like earthworms can be found in moist soil near rivers and streams in tropical regions.... So the answer is [(F)]


What often precedes mating?
Options:
- (A) A Greek letter
- (B) competition
- (C) friendship
- (D) birth of a child
- (E) death
- (F) Chemical energy
- (G) pregnancy
- (H) sweating
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Let's think first: Mating is generally preceded by courtship. Friendship usually precedes courtship, and courtship, marriage. Friendship often comes before mating.... So the answer is [(C)]


Plants cell walls are made of 
Options:
- (A) fiber
- (B) keratin
- (C) alveoli
- (D) cations
- (E) matter
- (F) CO 2
- (G) porous
- (H) Cane.
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Let's think first: Plants are multicellular eukaryotes with cell walls made of cellulose. Basically, fiber is cellulose . Plants cell walls are made of fiber.... So the answer is [(A)]


There are what who study how animals behave in their natural environment.
Options:
- (A) infants
- (B) heat or cold
- (C) insects
- (D) sensory neurons
- (E) scientists
- (F) people
- (G) humans
- (H) reptiles
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Let's think first: Ethologists usually study how animals behave in their natural environment. Ethologists are scientists who study animals in their natural habitats. There are scientists who study how animals behave in their natural environment.... So the answer is [(E)]


What do all vertebrates have?
Options:
- (A) sensory neurons
- (B) characteristics
- (C) a complete digestive system
- (D) Veins and arteries.
- (E) sub-units of species
- (F) wings and feathers
- (G) gills
- (H) gizzard
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Let's think first: Chordates have a complete digestive system and a closed circulatory system. All chordates are vertebrates. Vertebrates have a complete digestive system and a closed circulatory system.... So the answer is [(C)]


Cancer genes are an example of the type of thing that can be passed on through:
Options:
- (A) people
- (B) blood exposure
- (C) massive damage
- (D) viruses
- (E) Plant reproduction
- (F) contagious
- (G) reproduction
- (H) humans
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Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
Let's think first: Cancer genes can be inherited. Inherited characteristics are passed on by our genes. Cancer genes can be passed on through reproduction.... So the answer is [(G)]