Natural Selection, Genetic Drift, or Speciation
Gradualism and Punctuated Equilibrium
Ecosystem Stability
Evolution and Biodiversity Mix
Random Bio Topics
100
"Survival of the fittest"
What is natural selection?
100
Where over time there shows continuous change.
What is gradualism?
100
The increase in biodiversity of an ecosystem, __________ the stability of an ecosystem
What is increases ecosystem stability?
100
A species of sharks appeared over 160 million years ago. They remained unchanged for the forst 70 millions years but then suddenly experienced rapid genetic change. What rate of evolution is being described?
What is punctuated equilibrium?
100
What are the products/outputs of photosynthesis?
What is glucose (sugar) and oxygen?
200
Where a new species is formed.
What is speciation?
200
Where over time there is change occurring with periods of no growth
What is punctuated equilibrium?
200
During a drought, there has been no precipitation in 4 months. How would the impact ecosystem stability? (More stable or less stable?)
What is ecosystem instability? (less stable)
200
A structure that is known as an advantage trait that helps organisms during natural selection and survival.
What is an adaptation?
200
An infectious agent that takes over host cells.
What is a virus?
300
Northern and Mexican spotted owls evolved into distinct sub-species due to geographical separation.
What is speciation?
300
The type of rate of evolution is occuring.
What is punctuated equilibrium
300
In a forest, deer were hunted and eliminated from the ecosystem. These deer are food sources for coyotes in the area. How would this impact the ecosystem stability?
What would cause the ecosystem to become less stable?
300
There are only about 2,000 wild tigers left on Earth. The wild tigers have lost/decrease in habitat and have become isolated. How has the genetic diversity been affected?
What is a decrease in genetic diversity?
300
Is the part of the cell cycle where DNA is replicated.
What is S phase
400
Light-colored moths were camouflaged against light trees. When pollution darkened trees, dark-colored moths gained a survival advantage against predators, leading to a population shift from light to dark.
What is natural selection?
400
The type of rate of evolution occuring
What is gradualism?
400
How would the bird population be impacted if the grasshopper population were to go extinct?
What would cause the bird population to drease
400
Bright colored feathers in male peacocks display positive health to female peacocks. Over time there is an increase in bright colored peacocks rather than light/dull ones. This is an example of-
What is natural selection (survival of the fittest)
400
Produces 4 genetically different reproductive cells
What is meiosis?
500
The name of an event such as forest fire causing a population of deer to become extinct.
What is genetic drift?
500
Periods of no change during rates of evolution.
What is stasis?
500
How would the fox population be impacted if the rabbits went extinct due to a sudden disease?
What would cause the fox population to decrease?
500
What are regions 1 and 6?
500
The stage of protein synthesis occurs in the nucleus and copies DNA -> mRNA.
What is transcription?