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Biology

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Justine Wiegand

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Cards in this guide (12)
What is a homologous structure

A structure with similar shape but a different use

If all frogs died the raccoon population would most likely

increase

What is the sequence of electron carriers in the electron transport chain starting with the least electronegative

NADH Dehydrogenase

Ubiquinone

Cytochrome b-c1 complex

Cytochrome c

Cytochrome oxidase complex

Why are vestigial structures not removed by natural selection

Vestigial structures do not harm the organism. Nature selects against only harmful traits.

How is radioactive dating important for providing evidence for evolution

It tells you when the animal that made a fossil was alive.

Radio carbon dating proves scientifically the age of a given material. If a fossil is found embedded in material that is x number of years old and a similar fossil is found x number of years older or younger then we can surmise the evolution of that species. There are thousands of examples of theoretical evolution using this method.

How does reducing gene flow cause speciation

It allows divergence to occur

It allows populations to become genetically different.

Why are archaea in a different domain from bacteria

They are thought to have separate paths of evolutionary development.

They developed along different evolutionary paths.

They had independent evolutionary development.

How are organisms in the domains Bacteria and Archaea similar

They lack a nucleus.

They are prokaryotes.

They are unicellular.

A paleontologist finds a plant fossil that shows that the plant had seeds What can the paleontologist conclude

it was a land plant.

What groups is the smallest level of classification

genus

Which must be true for two organisms to be considered the same species

They can produce fertile offspring.

What are the two primary factors that sometimes cause the Colorado river to run compeletely dry before reaching the gulf of California

A population of animals is split in half by a river before spectation is complete the two halves are rejoined when a drought casues the river to run dry how would this impact the two population

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