Ralph
Who is Charles Darwin?
The father of natural selection
What is natural selection?
a population changing over time
What is a structural adaptation?
a physical feature that increases fitness
What is pollution
something that has a negative impact on the environment
What is evolution?
Changes to a population to fit the environment
What are the four types of natural selection?
stabilizing
disruptive
directional
sexual
What is sexual selection?
an organism's ability to attract a mate
What is a behavioral adaptation?
A specific behavior that increases fitness
What is a nonrenewable resource?
a resource that does not get replenished as quickly as it is used
Which of the following is not a human impact on biodiversity?
a. hunting
b. introducing invasive species
c. clearing land
d. pollution
a. hunting
What is fitness?
An organism's ability to survive and reproduce
What is the type of selection where man chooses the traits?
Artificial selection
What is disruptive selection?
When both extreme traits are selected
What is a renewable resource?
a resource that is quickly replaced as it is used
What is directional selection?
when one extreme trait is selected for
What is the gene pool?
all the different alleles in a population
What is stabilizing selection?
When the average trait is selected for
What is a homologous structure?
structure that comes from the same ancestor, but have different functions
What is an invasive species?
a nonnative species that harms the native enviornment
What is an example of an analogous structure?
a bat's wing and a bird's wing
How does gene flow affect evolution
It introduces new genetic variants to the population
What are the four characteristics of evolution?
reproduction, variation, competition, selection
Which of the following does not help support sustainable animal harvesting to support species conservation and the environment?
a. To provide population control
b. To ensure the population has enough time to replace the organisms that were removed
c. To keep killing that species until there are no members left
d. To help ensure the resources those animals are using are not being overconsumed
c. To keep killing that species until there are no members left
A whale does not have legs, but has a pelvis. What type of structure or trait is this?
vestigial
After the Industrial Revolution, black ash began to stick to the bark of light colored trees. Over time, the black moth species began to rise while the white moth population began to fall. What is this an example of?
natural selection