Evolution
What better describes Evolution?
A) The gradual change of populations over time
B) The gradual change of individuals over time
A
What is the endosymbiotic theory?
Eukaryotes evolved from prokaryotes when a larger prokaryote engulfed a smaller one.
What could be defined as "a heritable change in characteristics within a population from one generation to the next "?
Evolution
What is an example of a geographic isolation factor that could stop gene flow?
Mountain, river, island, volcano
A random mutation in rock squirrels makes some squirrels have bigger cheek pouches to carry food than others. Would this squirrel likely be more or less likely to pass on genes?
More likely, beneficial mutation, carry more food
The overuse of antibiotics can lead to ______.
Antibiotic resistance
Would genetic drift likely have a larger effect on a small population or a large population?
A small population
Geographic isolation stops gene flow and can lead to _______.
Speciation
What is speciation?
the formation of new and distinct species in the course of evolution
An ecosystem reaches its carrying capacity when resources become _______.
limited, scarce
Whale hip bones or human gallbladders are known as _______.
A sudden environmental disaster changes the ecosystem that a population of snakes are living in. If none of the population is able to adapt, what will likely happen to the snakes?
Extinction
Do vaccines inject dead forms of a pathogen or weakened ones?
Trick question- Both. Different vaccines are made differently.
If an organism is extremely fit in one environment, does this mean it will be properly adapted to another environment?
No, organisms are only "fit" in their unique environment
favored, accumulate, survive, reproduce
True or false- There is a finite amount of resources required for life in a specific ecosystem
True- This is why competition takes place!
True or False: Organisms that are better adapted to their environment are less likely to succeed in competition.
False! Organisms with better adaptations to the environment will be more likely to survive while competing for resources.
Competition takes place over resources organisms need to survive. What are examples of some of these resources?
Food, Water, Shelter, Mates
How is it possible that two completely different organisms can have similar body structures and anatomy?
If they have a common ancestor, they will likely be similar in some way
Embryology contains a lot of data that supports the theory that all life on Earth is related. What is embryology?