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10th BIO-CHAPTER 15

Jorge THE THEORY OF EVOLUTION Chapter 15

QuestionAnswer
H.M.S. Beagle, upon which Charles Darwin served as naturalist, set sail on a collecting and mapping expedition in 1831. TRUE
The environments that Darwin studied exhibited little biological diversity. FALSE
By careful anatomical study, Darwin found that the many species of plants ad animals on the Galapagos Islands were unique and bore no relation to species seen in other parts of the world. FALSE
The tortoises of the Galapagos are among the largest on Earth. TRUE
After returning to England, Darwin studied his collection for 10 years. FALSE
Darwin named the process by which evolution proceeds artificial selection. FALSE, natural selection.
Female finches found on the Galapagos Islands lay enormous numbers of eggs. Overproduction of Offspring
These fiches compete for a particular species of incest that inhabits the small holes found in the tree bark. Struggle for existence
Some finches' beaks are long, some are short. The finches with long beaks are better adapted to remove the incests from the bark. Variation
The finches with the long beaks survive and produce greater numbers of offspring with long beaks. Natural Selection.
Enables an organism to blend in with its surroundings. Camouflage
Provides protection for an organism by copying the appearance of another species. mimicry
The coloration of a flounder that allows the fish to avoid predators camouflage
Involve changes to the external appearance of an organism. Both
A flower that looks like a female bee. mimicry.
A modified structure seen among different groups of descendents. Homologous Structure
In the earliest stages of development, a tail and grill slits can be seen in fish, birds, rabbits, and mammals. Embryological Development
Exemplified by forelimbs of bats, penguines, lizards, and monkeys. Homologous Structure
The forelimbs of flightless birds. Vestigial Structure
DNA and RNA comparisons may lead to evolutionary trees. Genetic Comparisons
Bird and butterfly wings have same function but different structures. Analogous Structure
A body structure reduced in function but may have been used in an ancestor. Vestigial Structure
Created by: asimien907