Evidence of Evolution

Why do scientists study fossils?

• to learn how the planet was formed

• to study how organisms changed over time

• to observe how drought affected the landscape

• to understand how weathering affect rock layers

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NGSS.MS-LS4-1

NGSS.MS-LS4-2

All of the following are evidence that supports the Theory of Evolution except:

• Genetic Variation

• Fossils

• Similarities in Development

• Similarities in Habitat

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NGSS.MS-LS4-2

NGSS.MS-LS4-4

Luis is conducting an investigation to determine if modern horseshoe crabs evolved from extinct organisms call trilobites. Which of the following should Luis use to determine if there is evidence to support his idea?

• The fossil record of trilobites

• The population size of trilobites

• The traits of all extinct animals

• The population size of horseshoe crabs

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

Earth has undergone several ice ages in its history. During an ice age, much of Earth’s surface is covered by glaciers. Which types of organisms would natural selection favor most if Earth had another ice age?

• Organisms that make food by photosynthesis

• Organisms that hunt other organisms for food

• Organisms that are able to swim in deep water

• Organisms that have thick fur and layers of fat

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NGSS.MS-LS4-4

Scientists think that the modern horse is related to a long line of extinct organisms that once lived on Earth. Scientists have learned about the horse's extinct ancestors from their fossils. Based on the fossil evidence in the diagram, which of the following is the best conclusion about the evolution of the modern horse

• The modern horse evolved from an animal that had twice as many teeth

• The modern horse evolved from an animal that was probably a predator

• The modern horse evolved from an animal that had two toes on each forefoot

• The modern horse evolved from an animal that was less than one-third the height of the modern horse

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2