#Question id: 4959
#Unit 11. Evolution and Behavior
If a fossil is encased in a stratum of sedimentary rock without any strata of igneous rock (e.g., lava, volcanic ash) nearby, then it should be
#Question id: 4564
#Unit 11. Evolution and Behavior
Who would have proposed that the boundaries between each stratum mark the occurrence of different localized floods?
#Question id: 4565
#Unit 11. Evolution and Behavior
Darwinʹs mechanism of natural selection required long time spans in order to modify species. From whom did Darwin get the concept of Earthʹs ancient age?
#Question id: 4566
#Unit 11. Evolution and Behavior
Which of these naturalists synthesized a concept of natural selection independently of Darwin?
#Question id: 4567
#Unit 11. Evolution and Behavior
Charles Darwin was the first person to propose
#Question id: 4568
#Unit 11. Evolution and Behavior
In Darwinʹs thinking, the more closely related two different organisms are, the