Common Ancestry
Natural Selection 1
Vocabulary
Charts
Natural Selection 2
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Adaptation 

A characteristic, a behavior, or any inherited trait that gives an organism an advantage.

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According to the Cladogram, shark are most closely related to which organism?

A) Birds

B)Crocodiles

C)Amphibians

D)Ray-Finned Fish

D) Ray-Finned Fish 

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Fitness


The ability of an organism to survive and reproduce in its environment.

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The Amino Acid Sequence for each organism is shown below. Which organisms are more closely related?

Dog: SER, ILE, LYS, LYS        Cat: SER, CYS, MET, PRO

Human: MET, LYS, PHE, LYS    Monkey: SER, ILE, LYS, PRO

A) Dog and Cat

B)Cat and Monkey

C) Dog and Monkey

D) Dog and Human


C) Dog and Monkey

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Competition 

Occurs when more than one individual or population tries to make use of the same resource.

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 Based on the pictures below, which of these are most related?A) Human and Chimpanzee are based on vestigial structure.

B) Gibbon and Human are based on analogous structure.

C) All of them are based on homologous structure.

D) None of them

C) All of them are base on homologous structure.

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Frequency 

Is the relative frequency of an allele (variant of a gene) in a population. 

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Which Pokemon is the least related to Squirtle?
A) Fearow

B) Blastoise

C) Snorlax

D) They are all closely related

A) Fearow

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Natural Selection 

Darwin's theory which says that organisms best adapted to their environment are more likely to survive and pass on their traits to their offspring.

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A dichotomous key for trees is provided. Hikers found a tree that has large brown cones and single sharp needles. What species of tree have the hikers found?A) Juniper

B)Spruce

C) Pine

D) Fir

B) Spruce

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