5.1-5.2 IB Evolution

Which 4 are valid lines of evidence for the Theory of Evolution?

• Fossil records

• DNA analysis

• Comparative anatomy

• Embryology & Development

• Looking at the members of a family over 3 generations

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What is NOT true about the evidence that fossils provide?

• Some fossil organisms are transitional forms between groups of organisms.

• Fossil organisms often share physical similarities with living organisms.

• All fossils contain intact DNA that can be sequenced

• Fossil ages can often be determined by testing nearby rocks.

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NGSS.MS-LS4-1

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Which 3 of the following explain why we DO NOT have a complete fossil record of all life that’s ever lived?

• Fossil formation requires the physical and biological conditions to be just right, which is quite rare

• Fossils must be extremely close to the Earth’s surface to have a chance of being found.

• Fossils can be destroyed when rocks erode, melt, or change composition.

• All the fossils from millions of years ago do not exist anymore

• We do have a complete fossil record, as scientists have found millions of fossils over the years

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NGSS.MS-LS4-1

Which 2 explain why is it important to study fossils?

• Fossils are evidence of organisms that lived long ago

• Fossils are fortune tellers

• Fossils are fun to study

• Fossils are found everywhere in the world

• Fossils can show us how organisms changed over time

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Extinctions occur because the environment changes.

• 
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Which of the following are HOMOLOGOUS structures?

• bee wings and bird wings

• legs on a beetle and legs on a cat

• whale flipper and bat wing

• human eyebrows and ant antenna

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These limbs provide evidence of common ancestry because they....

• have the same structure

• Perform the same function

• Are the same size

• Are parts of mammals

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Which wings illustrate HOMOLOGOUS structures?

• bat & butterfly

• bat & bird

• butterfly & bird

• bat, butterfly, & bird

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All these organisms have similar arm bones. What is the reason for this?

• The function of these bones is the same in all animals

• They live in similar environments

• They have a recent common ancestor

• All organisms resemble humans

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Which of the following pieces of evolution evidence deals with comparing similar structures in various species?

• fossil record

• comparing embryology

• comparing biochemistry

• comparing anatomy

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