Relationships and Biodiversity Lab

Scientists attempted to determine the evolutionary relationships between three different finch species, A, B, and C. In order to do this, they examined the physical characteristics and DNA of these species. DNA was extracted from all three species and analyzed using gel electrophoresis. The results are shown in the diagram. Which statement best describes the method used above to determine the evolutionary relationships between three species of finches?

• Examine the structure of the beaks and compare them.

• Observe behavioral and physical characteristics of all the finches and group them by similarities.

• Obtain molecular evidence from all three species and identify similarities.

• Compare common ancestors of all three of the species to see if they are the same.

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NGSS.HS-LS4-1

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

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NGSS.HS-LS3-1

Protein sequences in one organism that resemble those of another suggest a 

• coincidence

• lack of evolutionary relationship

• great number of mutations

• shared ancestry

Tags

NGSS.HS-LS4-1

According to this cladogram, sharks are MOST closely related to which organism? 

• Amphibians

• Ray finned fish

• Crocodiles

• Birds

Tags

NGSS.HS-LS4-1

A species that has a disproportionately large effect on community structure relative to their abundance.

• Pioneer Species

• Invasive Species

• Keystone Species

• Foundation Species

High biodiversity is 

• having a lot of the same organism.

• having a few of the same organism.

• having a lot of variety of different organisms.

• only having one of each organism. 

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NGSS.MS-LS2-2

NGSS.MS-LS2-5

What human activities could cause Botana curus to become extinct? (Choose all that apply)

• destruction of natural habitat

• pollution

• introduction of foreign species that compete with native species

• removal of predators

• planting more Botana curus

Tags

NGSS.HS-LS2-7

NGSS.HS-LS4-5

Base your answer on the diagram below and on your knowledge of biology. The diagram represents the results of paper chromatography performed on extracts from five organisms.

Which two organisms are most closely related?

• cyanobacteria and green algae

• red algae and spinach

• brown algae and red algae

• red algae and cyanobacteria

Tags

NGSS.HS-LS4-1

During the Relationships and Biodiversity lab, simulated pigments from three plant species were compared to those in Botana curus. The results were similar to those represented below.

Based on the results of this comparison alone, is there enough information to conclude which of the other three species is most closely related to Botana curus?

• Yes. Only species X has the same bands as Botana curus.

• Yes. Species Z has only two of the bands that Botana curus has.

• No. Additional tests should be done to test for other chemical similarities.

• No. Other rainforest plant species should be tested.

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

NGSS.HS-LS4-1

NGSS.HS-LS4-2

Which evolutionary tree best represents the information in the chart?

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Tags

NGSS.HS-LS4-1

NGSS.HS-LS4-2

NGSS.HS-LS4-4