Evidence of Evolution

The diagram shows fossils in different rock layers. Which of these statements about the age of these fossils is most likely correct?

• Fossil A and C are the same age
  
• Fossil B is older than fossil C
• Fossils A is older than fossil B
• Fossil D is older than fossil C

Tags

NGSS.MS-LS4-1

NGSS.MS-ESS1-4

Scientists find dinosaur fossils in the bottom rock layers of a cliff and mammal fossils in the middle rock layer of the cliff. Which could best be concluded from this evidence?

• Dinosaurs ate plants.
  
• Dinosaurs were eaten by the mammals.
  
• Dinosaurs lived on Earth before the mammals.
  
• Dinosaurs and mammals lived at the same time.
  

Tags

NGSS.MS-LS4-1

NGSS.MS-ESS1-4

Scientists think that dolphins and whales may have evolved from a common ancestor. What evidence supports this hypothesis?

• They swim the same way.
• They eat the same food.
• They live in the same area of the ocean.
  
• They have similar anatomies.
  

Tags

NGSS.MS-LS4-2

NGSS.MS-LS4-3

What process is most responsible for the extinction of most species of plants and animals that have lived on Earth?

• gene mutation
  
• environmental changes
  
• selective breeding
  
• decrease in reproduction

Tags

NGSS.MS-LS4-1

NGSS.MS-LS2-4

The process by which populations slowly change over time is called__________

• selective breeding
• adaptation
• sepeciation
• evolution

Tags

NGSS.MS-LS4-4

A characteristic that can be passed from parent to offspring through genes is called a _________

• resistance
• selective breeding
• genetic change
• trait

Tags

NGSS.MS-LS3-2

Scientists compare organisms' DNA to support the theory that all species share a common _________________

• separation
• ancestor
• population
• environment

Tags

NGSS.MS-LS4-2

Study of embryos of various organisms to show a common ancestor because of similarities in development

• natural selection
• embryology
• speciation
• evolution

Two organisms that are closely related would have

• very similar DNA sequence
• exactly the same DNA sequences
• no proteins in common
• completely different DNA sequence

Some organisms that share a common ancestor have features that have different functions, but similar structures.  These are known as

• vestigial structures
• analogous structures
• homologous structures
• fossil structures