Evolution/Fossil Test

1) When it comes to the theory of evolution, why is studying the fossil record important? Choose the BEST answer

• 1) Fossils show us changes of species over time and links to a common ancestor

• 2) Fossils show us the history of the Earth

• 3) Fossils show us animals that have became extinct

• 4) Fossils show use bones and "stuff"

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The dodo bird became extinct due to loss of habitant from humans who inhabited its native island. Which aspect of natural selection caused the dodo bird to go extinct based off this information.

• Overpopulation

• Variation

• Competition

• Time

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A species of worm is active at night, and comes to the top of the soil only when it is dark outside. In the daytime, the members of the species stay burrowed several inches beneath the soil.

Which of the following explanations best describes how this behavior evolved in the species of worm?

• The worms have a predator with keen night vision.

• The worms have a predator that is active during the day.

• The worms rely on solar energy to increase their body temperature.

• The worms have increased mating opportunities at the surface that require visual cues

Originally, Al-Sudor was the first person who hypothesized that animals with the best adaptions would survive. Over time, figure like Darwin and Mendell provided evidenced that supported this claim. New evidence could change these ideas. Is evolution a law or theory?

• Theory

• Law

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Crabs are crustaceans with five pairs of legs. In certain species of crabs, the fifth pair of legs has a flattened, paddle-like shape.

Which of these statements best explains why this adaptation was most likely selected for? (look at image)

• Crabs with this adaptation can camouflage themselves from predators in mudflats.

• Crabs with this adaptation can more quickly swim away from predators in open water.

•  Crabs with this adaptation can more effectively defend against predators in oyster beds.

• Crabs with this adaptation can climb trees to protect themselves from predators in mangrove forests.

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A slow progressive decline in the number of dinosaur species would likely indicate a gradual cause of their extinction. However, a sudden disappearance of the dinosaurs implies a more catastrophic cause. Depending on location and interpretation, the fossil record seems to say different things.

 When scientists get different evidence from experiments and observations what should happen next?

• Scientists should vote and take the consensus opinion.

• If there were differing results from the same experiments, all the data is incorrect.

• More experiments, more evidence, and more communication is needed to ensure concrete results.

• Sometimes scientists run similar experiments but get different results. No further action is needed.

 Wooly mammoths were large elephant-like mammals that lived across North America during the last Ice Age, from 2 million to 9,000 years ago. These animals had thick skin and long hair that protected them from cold temperatures. Evidence from cave paintings and physical specimens indicates that early humans hunted large numbers of wooly mammoths, which may have contributed to the mammoths' extinction at the end of the Ice Age.

Which of these is another factor that most likely contributed to the extinction of wooly mammoths?

•  pollution in the environment

• the warming of Earth's surface

• competition with humans for resources

•  the harshness of Earth's climate during the Ice Age

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In 2006, scientists found a fossil that seemed to have fish-like scales, but also had four legs. It also had a bone structure in its neck that suggested it could raise its head. This fossil was given the name Tiktaalik and its discovery turned the scientific world upside down. 

What evidence does the discovery of this species give to support the idea of descent with modification in the theory of evolution?

• Tiktaalik shows that land animals used to be fish that lived in the water.

• Tiktaalik shows that fish lost their legs which allowed them to thrive in the water.

•  Tiktaalik shows that land animals and fish are not as closely related as once thought.

• Tiktaalik shows that modern species have ancient forms, which supports the ideas of common ancestry.

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In the beaker experiment and in Darwin's observations, why did bird have different beaks?

• Different beaks were a result of adaptions to eat the food they had in their enviorment

• They had different ancestors

• There was lack of variation

• LOL MR. Sutton shaved his face!!! He looks like a molerat

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Similiar structures shared by animals that show links to a common ancestor

• Homologous Structures

• Adaption

• Mutations

• Fossils

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