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- 1. Multiple Choice
What is natural selection?
inherited characteristic that increases chances of survival
organisms with traits well suited to their environment survive and reproduce at a greater rate
a growing population causes a scarcity of resources
differences in the DNA sequence
- 2. Multiple Choice
The process of choosing parent organisms for desired characteristics is called
natural selection
Artificial selection
random selection
genetic manipulation
- 3. Multiple Choice
Some organisms that share a common ancestor have features that have different functions, but similar structures. These are known asvestigial structuresanalogous structureshomologous structuresfossil structures - 4. Multiple Choice
Evolved from different ancestors, but due to living in similar environments have a similar function.
Homologous structures
Analogous structures
Vestigial structures
All of the above
- 5. Multiple ChoiceAccording to this cladogram, sharks are MOST closely related to which organism?AmphibiansRay finned fishCrocodilesBirds
- 6. Multiple Choice
What characteristic do all the organisms on this cladogram share?
Being bi-pedal & having language
Complex brains
Fully binocular vision
Partial binocular vision & opposable thumbs
- 7. Multiple Choice
An anatomical feature that no longer seems to have a purpose in the current form of an organism
Homologous structure
Analogous structure
Vestigial structure
None of the above
- 8. Multiple Choice
Which of the following is an example of the founder effect?
Bald Eagles are hunted until near extinction, population recovers.
Small group of iguanas floats to an island, starts a new population.
Red fox pups are more likely to survive in a snowy environment if they are born white.
Farmer chooses seeds from largest apples to plant next year. This results in larger apples from year to year.
- 9. Multiple ChoiceThe Table below shows the # of differences in amino acids in a protein called “Cytochrome C” when comparing humans to other organisms. The protein is used by many plants and animals to convert energy in cells.
List the 4 closest human relatives based on this biochemical comparison.chimpanzee, horse, rattlesnake, snapping turtlechimpanzee, gorilla, rhesus monkey, horsefruit fly, bread mold, tuna fish, snapping turtlegorilla, rhesus monkey, rattlesnake, gorilla - 10. Multiple Choice
What is an example of artificial selection?
Letting dogs choose their own mate
Letting plants pollinate on their own
Crossing a labrador and a poodle to create a labradoodle
- 11. Multiple Choice
When the Grand Canyon in Arizona formed, two populations of one squirrel species were separated by the giant canyon. This is an example of _____________ speciation.
Allopatric
Sympatric
Simple
Divergent
- 12. Multiple Choice
A speciation in which new species evolve from a single ancestral species while inhabiting the SAME geographic region.
Sympatric speciation
Allopatric speciation
Complex speciation
Divergent speciation
- 13. Multiple ChoiceA population of cockroaches was sprayed with an insecticide. Some cockroaches survived and produced a population of cockroaches that was resistant to this spray. What can BEST be inferred from this example?species will adapt no matter what the environmentenvironment has no effect on the survival of an organismIndividuals with favorable variations survive and reproduceInsecticides cause mutations that are passed on to the next generation
- 14. Multiple ChoiceGenetic drift is change in the allele frequency of a population due to...random chancenatural selectionnon-random mating (sexual selection)artificial selection
- 15. Multiple Choice
How do you "win" at natural selection?
survive
go extinct
survive & reproduce
- 16. Multiple Choice
Which animals have amniotic eggs?
Turtle and Tuna
Turtle and Leopard
Lancelet and Lamprey
Tuna and Slaamander
- 17. Multiple Choice
What number is the common ancestor of C and D
1
2
3
4
- 18. Multiple ChoiceA slight difference in an inherited trait between individual members of the same species.variationsadapatationshomologous structuresanalogous structures
- 19. Multiple ChoiceStructures or behaviors that help an
organism survive in its surroundingsadaptationsinherited traitslearned behaviorsstructural behaviors - 20. Multiple Choice
According to the cladogram, which organism is most distantly related to the human?
crayfish
pigeon
perch
frog
- Answer choicesTagsAnswer choicesTags