Cladograms
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This node should be labeled "body hair."
What is "node C" ?
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Based on this image, we can condclude...
What is "they share a common ancestor" ?
the preserved remains or traces of plants or animals from Earth’s past
What are "fossils" ?
Scientists who study prehistoric life through fossils.
What are "paleontologists" ?
What is "extinct" ?
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This organism is the most closely related to the bird.
What are "crocodiles" ?
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A new species is found with 34 teeth. We can estimate that the species is this old.
What is "between 66 and 85 million years old" ?
A mammoth skull buried in ice, a skeleton preserved in a tar pit, and an insect preserved in amber are all examples of this kind of fossil.
What are "inclusion/body" fossils?
Variation among organisms in an ecosystem.
What is "diversity" ?
This rock is formed from layers of deposition and solidification.
What are "sedimentary layers" ?
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This trait distinguishes the shark from the other organisms.
What is "bony skeleton" ?
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These two are the least related.
What are "A & E" ?
Although a cast fossil looks like the original bone or shell of an organism, it is different because of this.
What is "made of rock" ?
Organisms that share a common ancestor.
What is "common ancestry" ?
Data about fossils that includes the number, type, and location.
What is "fossil record" ?
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These are the traits that amphibians have.
What are "vertebrae, four limbs, and bony skeleton" ?
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These two are the most closely related.
What are "A & B or C & D" ?
Footprints of extinct species, petrified nests or burrows, and animal droppings are all examples of this type of fossil.
What are "trace" fossils?
The way that organisms change over time can be seen through this.
What is "ancestral history" ?
Scientists can determine the relative age of rocks using this technique which measures the amounts of a radioactive substance and its decay
What is "radioactive dating" ?
The traits that crocodiles have in common with rodents and rats.
What are "amniotic eggs, vertebrae, bony skeletons, and four limbs" ?
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I am person B. My sibling would be...
What is "person A" ?
The fossil record tells us the number, type, and location of fossils. This is important information because it...
What is "reveals information about Earth's past and environment" ?
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All of these plant types are related through their ancestral history to a common ancestor that had this trait.
What is "transport system made of xylem and phloem" ?
This law states that the oldest rock layer is found at the bottom in an undisturbed stack of rock layers, while the youngest layer is at the top.
What is "The Law of Superposition" ?