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WorksheetsSY25_Natural Selection Human Population
Total questions: 35
Worksheet time: 25mins
A difference in beak shape among members of the same finch species is an example of .
variation
reproduction
competition
selection
Which of the following is an example of an environmental pressure?
The air pressure in the atmosphere
Breeding between two members of the same species
A lake that's gradually running out of water
A fight between two members of the same species
When nature "selects" a variation, that means that the trait:
Gets passed along from generation to generation
Causes the population to shrink
Has brought about a new species
Helps prey escape predators
The finch population of a remote island is 1000 finches on average. Choose the statement that best describes the climate during the five years shown in the graph.
A year of drought followed by four years of average or above-average rain
A year of above-average rainfall followed by four years of drought
Five years of drought
A year of average rain followed by four years of above-average rain
Which of the following is an inherited trait that increases an organism’s chance of survival and reproduction?
adaptation
mutation
natural selection
selective breeding
A dog owner prefers very pointy noses for his dogs. So, he has dogs with the most pointed noses mate in hopes of getting puppies with very pointy noses. This process is called____________
mutation
gene therapy
natural selection
selective breeding
Small changes in traits that cause variation are frequently caused by _____.
adaptations
mutations
natural selections
selective breedings
A population of beetles changing from yellow to brown and surviving better is an example of _____.
adaptation
competition
reproduction
selective breeding
Which statement is true comparing natural selection and artificial selection?
In natural selection, traits benefit humans and in artificial selection, the traits benefit the species
In natural selection, traits benefit the species and in artificial selection, the traits benefit humans
In natural and artificial selection, the process takes hundreds of years to occur
In natural and artificial selection, nature determines what traits will be passed down to offspring.
Artificial selection is also known as
natural selection
selective hearing
evolution
selective breeding
Which adaptation for protection allows an animal to hide either from predators or prey by blending with its environment?
albinism
conformity
mimicry
camouflage
A caterpillar that resembles a snake is an example of what type of adaptation?
translation
transcription
mimicry
camouflage
GMO stands for
Genetically modified organism
Genetically made organ
Generically made organism
Generically modified organism
Which of the following is NOT an advantage of genetically modified organisms?
insect resistance
drought/freeze resistance
higher yield
seed / pollen drift to organic farms
In the phrase "survival of the fittest," the term "fittest" refers to:
The best-adapted organisms
The biggest organisms
The smartest organisms
The fastest organisms
When DNA is manipulated and moved from one source to another it is known as
genetic engineering
natural selection
transcription
selective breeding
A male peacock will spread his feathers when trying to attract a mate. What type of adaptation is SPREADING its feathers to attract a mate?
functional
behavioral
structural
The human mouth produces saliva to help soften food so it can be swallowed. The production of saliva is a ___ adaptation.
structural
behavioral
functional
Humans have an opposable thumb. This opposable thumb is a ___ adaptation.
structural
behavioral
functional
According to Darwin's theory of natural selection, individuals that tend to survive.......
got characteristics from their parent through use and disuse
have the least number of offspring
have characteristics that breeders value
have variations best suited to their environment
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
A species could go extinct if:
food becomes more plentiful.
members of the species have adaptations to enhance survival.
the environment changes drastically and no one can adapt.
there is less competition for resources.
What type of environment do you think this data was collected from?
forest with primarily white-bark trees
forest with primarily dark-bark trees
Survival of the Fittest and Evolution were proposed by which scientist?
Which of the following is a behavioral adaptation?
blue whales migrating to mate and give birth
tree frogs having long, sticky tongues
alligators’ eyes being on top of their heads to help them see above the water
hedgehogs having stiff spines sticking out of their bodies
The largest population size of a species that can be supported by the environment is referred to as ____.
Carrying Capacity
Equilibrium
Limited Factors
Population Growth
How would you describe this population pyramid?
How would you describe this population pyramid?
