1
What causes the variation of traits in a population?
Mutations
What is an antibiotic?
A type of medicine that helps to fight bacterial infections
What is the difference between bacteria and viruses?
Bacteria are living things
Viruses are nonliving and need a host
What was so special about the ancient bacteria found in the cave?
It was resistant to over 50% of the antibiotics tested despite being sealed away for 4 million years
What popular phrase describes our idea of natural selection?
Survival of the fittest
What is a vaccine?
A preventative treatment that trains your body to fight specific bacteria and/or viruses
True or False:
Bacteria compete with each other
True!
Where was the cave that the ancient bacteria was found in?
A thousand feet underground in New Mexico.
True or False:
A change in the environment causes a change in traits
False
What is antibiotic resistance?
The ability of bacteria to resist the antibiotics that are meant to kill them
How is disease spread between people?
Bodily fluids
Physical touch
Etc
True or False:
The ancient bacteria scientists found would not make humans sick
True!
What is the name of the bacteria that causes the Black Death?
Yersinia pestis (Y. pestis)
True or False:
Antibiotics can cure a common cold.
False!
How did some people survive the Black Death?
Some people were born with the protective version of the ERAP2 gene, giving them immunity.
True or False:
There were no dark mice until after the volcanic eruption.
False!
What does it mean for a trait to be heritable?
It can be passed down from generation to generation
What does it mean for a population to have variation?
Different traits exist in a single population.
In our beads activity, what did the beads represent?
Bacteria
In our beads activity, what did rolling the dice represent?
Mutations