Evidence/Cladistics/Classification EPS Board Week 2

Structures with the same parts have different functions; suggests that organisms share a common ancestry

• vestigial structures
• homologous structures
• adaptive radiation
• fossil

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

Tags

NGSS.MS-LS4-3

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

Tags

NGSS.MS-LS4-2

If modern organisms have a lot of homologous structures, what inference might paleontologists make about those organisms?

• They are reptiles
• One organism evolved from the other.
• The organisms have a common ancestor

Tags

NGSS.MS-LS4-2

Which is not evidence for evolution?

• many animals have homologous structures due to common ancestry
• Many animals have vestigial structures from an ancestor
• We can observe changes in life forms by observing the fossil record
• All of these are evidence for evolution

Tags

NGSS.MS-LS4-2

NGSS.MS-LS4-1

How do fossils provide evidence that evolution has happened on Earth?

• Fossils show how the sizes of certain animals has changed drastically over millions of years
• Fossils show that some species have gone extinct
• Fossils show how life forms present today are different than those from the past
• Different sedimentary rock layers provide evidence for how the environment has changed over time

Tags

NGSS.MS-LS4-2

NGSS.MS-LS4-1

Recently, scientists have been able to use ___________to find common proteins and amino acids to determine how closely related species are.

• DNA

• Vestigial structures

• Fossils

• Homologous structures

Tags

NGSS.MS-LS4-2

The changes of species over time

• Embryonic 
• Natural selection 
• Mimicry 
• Evolution 

Tags

NGSS.MS-LS4-2

NGSS.MS-LS4-1

Which process of evolution is demonstrated below?

• Comparative anatomy

• Homologous structures

• Comparative embryology

• Vestigial structures

Tags

NGSS.MS-LS4-2

NGSS.MS-LS4-3

The picture shows similarities among the forelimbs of three animals. The similarities provide evidence for which of the following hypotheses?

• Legs and wings may have evolved from flippers.

• All mammals have evolved from an ancestor that was a bat.

• A cat’s leg, a whales’sflipper, and a bat’s wing have identical functions

• Cats, whales, and bats had the same ancestor millions of years ago.

Tags

NGSS.MS-LS4-2