Evolution Introduction

What is the advantage of having different shaped beaks?

• To look different from other species.

• To be able to eat the food readily available in the environment.

• To protect itself against predators.

• To protect itself against prey.

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A fossil of an extinct dinosaur is found and the anatomy of the fossil shows similarities to that of a bird. What could this mean?

• This is purely by chance and isn't significant

• The extinct dinosaur and modern bird share a common ancestor

• All dinosaurs evolved into birds and that's why there aren't any dinosaurs alive today

• Dinosaurs choose to fly, and evolved into birds to escape predation and capture food

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Body part you have that use to have a purpose but now has little or no function

• vestigial organ

• embryology

• homologous structures

Scientist that contributed the most to our understanding of evolution

• Darwin

• Lamarck

Organisms with the best suited adaptations for their environment are more likely to survive and reproduce than organisms that are not very well adapted

• natural selection

• artificial selection

• creationism

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a trait that gives an organism an advantage in their particular environment

• overproduction

• adaptation

• selection

• variation

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The cave fish and minnow are related to each other but the cave fish is blind and only has the remnants of an eye. What type of structure is this?

• vestigial

• analogous

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What is an example of a vestigial structure in a human?

• liver

• appendix

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The process where organisms best fit for the environment are more likely to survive and reproduce.

• natural selection

• adaptation

• hibernation

• selective breeding

• hybridization

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What will most likely happen if a species can no longer produce offspring?

• It will become extinct.

• It will evolve into another species.

• It will move into a new environment and adapt.

• It will begin to mutate into another organism.

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