If two organisms are in the same class then which of

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9. If two organisms are in the same class, then which of the following must alsobe TRUE?They are in the same order.They are in the same phylum.They are in the same family.None of the answer options is correct.They are in the same genus.
10. Streamlined bodies are common in many aquatic organisms: Dolphins, tuna, penguins, and sharks are all organisms that have streamlined bodies that reduce friction and drag. Body shape in each of these organisms would be considered an:
22. A population of rodents, called population A, lived together in harmony on a large landmass until one group of the population dispersed to a nearby island. Two million years later, the island population is split into two smaller, equal-sized populations when a river formed across the middle of the island. Now two new species have evolved on the island, A1 and A2. They have replaced the population from which they were derived. Which represents the phylogeny of the populations discussed in this scenario?
23. Examine the following table of characters in four different species of flower. Based on the matrix, which tree represents the MOST parsimonious explanation of relatedness among these species? phylogeny 3phylogeny 1
natural character.
11. Which factor increases an organism's chance of becoming a fossil?
12. Examine Figure 23.2 below. According to this figure, the amphibians are a _____ group.
13. Paleontologists did not just stumble across Tiktaalik, they formed a hypothesis about where they would find a transitional form between fish and tetrapods. What might have been the logical first step in deciding whereto “look” for a transitional form between fish and tetrapods?They looked for sedimentary rocks that also contained fossils of the first land plants.They looked for sedimentary rocks that were formed in shallow waters 370–380 million years ago.They looked for sedimentary rocks that were formed in deep waters 370–380 million years ago.They considered regions of the world where fossilization is likely to occur.

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