Question: A scientist studies the remains of two extinct animals to learn more about how they lived. She determines that one animal was a carnivore and the other was an herbivore. Which of the following did the scientist most likely compare to make this conclusion?
Answer: the skull of the animals
Hypothesis: the skull of an animal can be used to determine if that animal was a carnivore or an herbivore
Supporting facts: sent1: a bone is a part of some animals sent2: an invertebrate organism does not have an internal skeleton sent3: teeth have different shapes for eating different foods sent4: the properties of something can be used to identify / used to describe that something sent5: the properties of something are used for describing that something sent6: teeth are part of an animal used for eating sent7: herbivores only eat plants sent8: comparing requires observing that something sent9: carnivores only eat animals sent10: preserved means from the past / from long ago sent11: the skeleton of an animal can be used for inferring the height / the length of that animal sent12: eating an animal / a plant means killing that animal / that plant sent13: herbivore means first-level consumer sent14: jaws are a part of an animal's skull sent15: to prey on an animal means to eat that animal sent16: a brain is a part of an animal sent17: identifying is similar to determining sent18: ability is a property of things and includes ordered values of able / unable / can / cannot sent19: to conclude means to make a conclusion sent20: jaws have different shapes for eating different foods sent21: if one type of animal has a different feature compared to another type of animal, then that feature is specific to that type of animal sent22: teeth are a part of an animal's skull sent23: jaws are part of an animal used for eating sent24: if a part of an animal is specific to a type of animal, then that part can be used to determine whether or not that animal was that type of animal sent25: a predator is a kind of animal
Reasoning: [BECAUSE] jaws are part of an animal used for eating [AND] teeth are part of an animal used for eating [INFER] int1: teeth and jaws are part of an animal used for eating [BECAUSE] jaws have different shapes for eating different foods [AND] teeth have different shapes for eating different foods [INFER] int2: teeth and jaws have different shapes for eating different foods [BECAUSE] int1 [AND] int2 [INFER] int3: animals that eat different foods have differently shaped teeth and jaws [BECAUSE] herbivores only eat plants [AND] carnivores only eat animals [INFER] int4: carnivores only eat animals and herbivores only eat plants [BECAUSE] int3 [AND] int4 [INFER] int5: canivores have differently shaped teeth and jaws than herbivores [BECAUSE] int5 [AND] if one type of animal has a different feature compared to another type of animal, then that feature is specific to that type of animal [INFER] int6: certain teeth and jaws are specific to carnivores and other teeth and jaws are specific to herbivores [BECAUSE] int6 [AND] if a part of an animal is specific to a type of animal, then that part can be used to determine whether or not that animal was that type of animal [INFER] int7: teeth and jaws can be used to determine whether an animal is a carnivore or an herbivore [BECAUSE] jaws are a part of an animal's skull [AND] teeth are a part of an animal's skull [INFER] int8: teeth and jaws are a part of an animal's skull [BECAUSE] int7 [AND] int8 [INFER] int9: the skull of an animal can be used to determine if that animal was a carnivore or an herbivore