Natural Selection & Common Ancestry Review

The study of the similarities and differences of body structures of different species

• comparative embryology

• comparative anatomy

• evolution

• fossil evidence

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NGSS.MS-LS4-2

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To change the frequencies of alleles in a population over time; biological change over time. 

• natural selection

• theory of evolution

• evidence

• evolution

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Any remains, impression, or trace of a living thing of a former geologic age

• fossil evidence

• anatomical evidence

• embryological evidence

• genetic evidence

Tags

NGSS.MS-LS4-2

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NGSS.MS-ESS2-3

Process by which organisms with favorable traits produce more successful offspring than organisms with less-favorable traits, causing the favorable traits to become more common in the population

• evolution

• natural selection

• fossil record

• pedigree

Tags

NGSS.MS-LS4-4

What are the different types of evidence for evolution?

• fossils

• DNA similarities

• similarities in embryos

• similarities in anatomy

• all of the above

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NGSS.MS-LS4-2

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What is a homologous structure?

• having a body part that has no known function

• similar structures in more than one organism because they evolved from a common ancestor

• a structure that evolved to help an organism survive in their environment

• similar structures that evolved independently in two living organisms to serve the same purpose

Tags

NGSS.MS-LS4-2

In a meadow, there are two colors of cone flowers: Pink and yellow. The bees and other pollinators seem to be more attracted to the pink flower and visit the pink flowers more often than the yellow flowers. Over time there are more pink flowers in the meadow than yellow. What principle is at work here?

• speciation

• environmental pressure

• natural selection

• homologous structures

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NGSS.MS-LS4-4

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What is a vestigial structure?

• having a body part that has no known function

• similar structures in more than one organism because they evolved from a common ancestor

• a structure that evolved to help an organism survive in their environment

• similar structures that evolved independently in two living organisms to serve the same purpose

Tags

NGSS.MS-LS4-2

What is an adaptive structure?

• having a body part that has no known function

• similar structures in more than one organism because they evolved from a common ancestor

• a structure that evolved to help an organism survive in their environment

• similar structures that evolved independently in two living organisms to serve the same purpose

Tags

NGSS.MS-LS4-2

NGSS.MS-LS4-4

What is an analogous structure?

• having a body part that has no known function

• similar structures in more than one organism because they evolved from a common ancestor

• a structure that evolved to help an organism survive in their environment

• similar structures that evolved independently in two living organisms to serve the same purpose

Tags

NGSS.MS-LS4-2