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- 1. Multiple ChoiceYou look at two species and see very similar DNA. What does this likely tell you?These are the same animal.These animals have a common ancestor.These animals are not likely related.These animals are likely becoming one species.
- 2. Multiple Choice____ is when members of a species that are best suited for their environment survive and reproduce at a higher rate than other members of the speciesnatural selectionartificial selectionspeciationadaptation
- 3. Multiple ChoiceWhat do the similar embryos of human and chickens tell us?We both use our bones for the same things, leading to similar structures.They had a common ancestor.Humans are descendants of wolves.It is impossible to tell.
- 4. Multiple ChoiceDo organisms "decide" to adapt?Yes, if they don't adapt they will dieNo, they can't adapt. They either have adaptations or they don'tNo, they adapt by random mutations during their lifetimeYes, they can force mutations in one lifetime
- 5. Multiple Choice
In humans, the pelvis and femur, or thigh bone, are involved in walking. In whales, the pelvis and femur shown areexamples of fossilsacquired traitsexamples of natural variationshomologous structures - 6. Multiple ChoiceAn adaptation ishow animals change over time.a characteristic that helps an organism survive and reproducea theory of how organisms change.the genes in an organism that determine how an organism is going to look.
- 7. Multiple ChoiceThe differences among a species, like different bird beaks, are calledgenes.variations.advantages.theories.
- 8. Multiple ChoiceWhich two organisms are the most closely related according to their DNA sequence?
Critter A--> ATG CTT AAC CCG TTA
Critter B--> ATC CTT TTC CCG TAA
Critter C--> ATG CTA TAG GCG TAACritter A and BCritter A and CCritter B and CThey are all equally related - 9. Multiple ChoiceWhat causes a species to evolve over time?
Extinctions
Inherited genetic variations and mutations
The cycle of the climate
Environmental changes.
- 10. Multiple ChoiceAntibiotics are frequently given to humans that have strep throat. Why might this practice be considered a problem?Antibiotics will have more side effectsThe human body can metabolize the antibiotic to quickly, not allowing the antibiotic to reach the bacteria.A mutation can occur in the bacteria making it resistant to the antibiotic.Nothing will happen. It takes thousands of years for bacteria to evolve and become antibiotic resistant.
- 11. Multiple ChoiceIndividuals who are considered fit, have:Stronger genesFewer mutationsMore foodMore offspring
- 12. Multiple ChoiceThe ability of an organism to survive and reproduce is known as...AdaptationTraitFitnessVariation
- 13. Multiple ChoiceOrganisms with the most beneficial traits will survive and reproduce. This is commonly known asDNAvariations.survival of the fittest.ecosystems.
- 14. Multiple Choice
Which of the following is considered a behavioral adaptation?
Wolves hunting in packs
Long trunks of elephants
Birds wings that allow them to fly
The white underbelly of a shark
- 15. Multiple ChoiceWhich of the following means "genetic change in a population over time"natural selectionspeciationevolutionfitness
- 16. Multiple Choice
Humans evolved from monkeys
True
False
- 17. Multiple ChoiceAccording to this cladogram, sharks are MOST closely related to which organism?AmphibiansRay finned fishCrocodilesBirds
- 18. Multiple ChoiceAccording to the cladogram, which organism is most distantly related to the human?crayfishgrasshopperperchfrog
- 19. Multiple Choice
If a trait that is advantageous is dominant, then which of the following is true?
The dominant allele will disappear over time
The recessive allele will disappear over time
The recessive allele will occur less frequently but won't disappear
The dominant allele will occur less frequently but won't disappear
- 20. Multiple Choice
Adaptations can be:
camouflage
ability to survive cold weather
hunting skills
all of the above
- 21. Multiple Choice
What is most likely to happen to moth populations in the picture shown?
Light moths--hunted easily, dark moths--population increase
Dark moths--hunted easily, dark moths--population increase
Light moths--hunted easily, light moths--population increase
Lights moths will change their color to match dark moths.
- 22. Multiple ChoiceDogs such as Chihuahuas are examples of....Artificial SelectionNatural SelectionMutations
- 23. Multiple Choice
Over the years, white mice became extinct and darker mice survived. This is
stabilizing selection
directional selection
disruptive selection
due to exercise
- 24. Multiple Choice
Where do adaptations come from?
The individual organism decides to adapt
Mutations that give an organism an advantage in its environment
Genetic recombination during meiosis
Both mutations and genetic recombination are sources of adaptation
- 25. Multiple Choice
The more genetic variation a population has,
the more likely it is for some individuals to
evolve
migrate
survive
mutate
- 26. 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.
- 27. Multiple ChoiceSurvival of the Fittest and Evolution were proposed by what scientist?Charles DarwinAlbert EinsteinSteven HawkingIsaac Newton
- 28. Multiple Choice
If an organism can't adapt fast enough, it will die.
What is wrong with this statement?
Even if an organism can't adapt fast, it might still live
An organism cannot "adapt". Only groups of organisms can gain adaptations over time
An organism can adapt fast enough
An organism can't "adapt" it just lives or dies by luck
- 29. Multiple ChoiceBird's beaks evolve mainly due to the type of ___________________ available.foodwatershrubsmates
- 30. Multiple Choice
Why do peacocks (males) have such elaborate feathers?
This helps them scare off predators
They use them to blend in to their environment
They were genetically preferred by females to mate
They are able to fly better
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