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Chapter 15 Evolution

Name _______________________
Period _______
Across
A means of concealment that creates the effect of being part of the natural surroundings.
Organisms diverged in response to what is available to them in their habitats
A type of evolution where 2 or more related species become more and more dissimilar.
Structures that have different forms but develop from the same clump of cells in embryos. (common ancestors)
Structure that continue to be inherited but have no real functions
Even though the islands were very close, what was very different.
The name of the ship Darwin sailed
Individuals that are best suited to their environment, will successfully reproduce.
The ability of an individual to survive and reproduce in its environment.
Scientist that believed that if human population growth continued to grow their would be insufficient resources and space.
Scientist that traits acquired during your life time can be passed to offspring
An inherited trait that makes individuals different from each other
Features have similar appearances and function but different embryological origin.
Down
Scientist that contributed to the understanding of evolution
Nature provides the variation and humans select the most useful ones.
Change of two or more species in close association with each other
Preserved remains of ancient organisms
The islands where Darwin did most of his study
A type of evolution that occurs when 2 organisms develop similar traits because of their similar environment.
A well supported testable explanation of phenomena that have occurred in the natural world
Structure used in the notes as an example of homologous.
The ability to imitate other animal traits to elude predators.
Any inherited characteristic that increases an organisms chance in survival.
Change over time, organisms have descended from ancient organisms
What marine reptile did he study
What species of bird did Darwin study the most