2019 Biology Final Exam Review

The process by which populations slowly change over time is called__________

• selective breeding
• adaptation
• sepeciation
• evolution

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What does Darwin's theory of evolution suggest?

• species change over time
• extinct species are not related to living species
• different species can interbreed
• animals that look alike are most closely related

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If species A and B have very similar genes and proteins, what is probably TRUE?

• species A and B share a relatively recent common ancestor
• species A evolved independently of species B for a long period
• species A is younger than species B
• species A is older than species B

Individuals that are well adapted to their environment will survive and produce:

• Fewer mutations
• Stronger genes
• More offspring
• Better traits

How does evolution explain the evolution of thick, waxy leaves in plants?

• thick, waxy leaves allow plants to survive and reproduce

• plants without thick waxy leaves can acquire them during their life

• plants who lack thick waxy leaves acquired them from a mutation during their lifetime

How do you determine which organism is the most fit?

• whoever has the most offspring

• whoever can move the fastest

• whoever eats the most food

Which of the following is the best example how genotypic variation can help a organism survive?

• A mouses whiskers help sense when predators are near

• a mutation in bacteria leads it to be resistant to an antibiotic

• identical twins in different families will have different personality traits

How do phenotypic variations help organisms survive?

• allows species to shape its environment so it is more inhabitable

• causes individuals in a species to spread out

• increases the odds some organisms in the environment will be able to survive a change

Genotype refers to the ...

• physical expression of the genes
• the possible combination of alleles in a gene
• whether an allele is dominant or recessive
• how an organism will appear

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An offspring will receive how many alleles from each parent to determine a specific trait?

• one
• two
• three
• five

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