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- 1. Multiple ChoiceA giraffe has a long neck in order to better reach leaves to eat. This is an example of _____.an adaptationenvironmentresponsestimulus
- 2. Multiple Choice
Base your answer(s) to question(s) on the diagram below and on your knowledge of biology. The diagram shows the heads of four different species of Galapagos Islands finches.
The four different types of beaks shown are most likely the result ofgene manipulationnatural selectionunchanging environmental conditionspatterns of behavior learned from parents - 3. Multiple ChoiceWhich characteristic is necessary for natural selection to occur in a species?stabilityvariationcomplex cellular organizationa very low mutation rate
- 4. Multiple Choice"Survival of the Fittest" describes which theorya) natural selectionb) gravityc) heredityd) string theory
- 5. Multiple ChoiceWhy are advantageous traits more likely to be passed onto offspring?Because they are more likely to survive and reproduce.Because they come from dominant alleles.Because they come from recessive alleles.Because the trait is an acquired phenotype.
- 6. Multiple ChoiceMutations are a change in what?DNAtRNAgenotypephenotype
- 7. Multiple ChoiceIndividuals in a population have to compete for resources.SpeciesVariationMutationCompetition
- 8. Multiple ChoiceWhat do we call traits that increase an individual's chance to survive and reproduce?MaladaptationsAdaptionVariationsAdaptations
- 9. Multiple ChoiceDarwin said that within a species there will be _________________________nothing differentvariation/differences
- 10. Multiple Choice
A grizzly bear survives because he is well-adapted to his environment. When he reproduces he passes on those traits to his offspring. this process is called
Natural Selection
Selective Breeding
Random mutations
Variations in a species
- 11. Multiple ChoiceSurvival of the Fittest and Evolution were proposed by what scientist?Charles DarwinAlbert EinsteinSteven HawkingIsaac Newton
- 12. Multiple ChoiceWhat process is being shown in this image?VariationNatural SelectionSelective BreedingHomeostasis
- 13. Multiple Choice
Which best describes the role of mutations in natural selection?
Mutations help an organism to better survive in their environment
An organism may acquire a helpful mutation by interacting with the environment
A mutation may result in a beneficial trait that makes an organism more likely to survive and reproduce
Organisms with certain traits are more likely to win competitions for mutations
- 14. Multiple Choice
The more genetic variation a population has,
the more likely it is for some individuals to
evolve
migrate
survive
mutate
- 15. Multiple ChoiceWhy do frogs and other organism reproduce so many eggs or offspring?so that their babies can have friends to play withthe more offspring the more likely the offspring will survivethe more offspring the less likely offspring will survivethe more offspring the less competition
- 16. Multiple ChoiceWhich organisms are most likely to survive?the best adaptedthe fastestthe strongestthe most domesticated (tamed)
- 17. Multiple ChoiceDo organisms "decide" to evolve and change?Yes, they know they need to change to surviveNo, they change because of natural selection
- 18. Multiple ChoiceDomesticated dogs are an example of:Natural SelectionSelective Breeding
- 19. Multiple Choice
Why is competition important for natural selection?
It shows which variations are more successful, allowing the organisms with those variations to survive.
It causes organisms, regardless of which traits they have, to die out, reducing the population size.
It causes organisms to get stronger due to having to outcompete other species.
Competition is not important for natural selection.
- 20. Multiple ChoiceWhen an environment changes faster that an species can adapt, the most likely outcome is......biological evolution....voluntary mutation...species extinction...selective breeding
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