Question 20 (Multiple Choice Worth 3 points) (07.05 MC)
A burned body is found after a warehouse fire. You cannot obtain nuclear DNA suitable for testing, but you are able to
challenge will you encounter when trying to identify the person using mtDNA?
Everyone has the same mtDNA so you won't be able to narrow identity down.
mtDNA is most useful for information on traits like hair color so it won't narrow things down much.
mtDNA only shows patrilineal lineage so it will only show the father's mtDNA.
mtDNA is time consuming and expensive, not all labs have the capabilities to test this
Question 21

As the human population grows, what happens to our natural-resource requirements? o they increase o they decrease o they do not change. they go in cycles

In 1959, doctors began using the powerful antibiotic methicillin to treat infections of staphylococcus aureus, but within two years, methicillin-resistant strains of s. aureus (mrsa) appeared. how did the resistant strains of s. aureus emerge? in 1959, doctors began using the powerful antibiotic methicillin to treat infections of staphylococcus aureus, but within two years, methicillin-resistant strains of s. aureus (mrsa) appeared. how did the resistant strains of s. aureus emerge? staphylococcus aureus bacteria that were able to synthesize cell walls using a protein that was not affected by methicillin survived the methicillin treatments and reproduced at higher rates than did other individuals. over time, these resistant individuals became increasingly common. in response to treatment of staphylococcus aureus infections with methicillin, some bacteria began to synthesize cell walls using a protein that was not affected by methicillin. these bacteria survived the methicillin treatments and reproduced at higher rates than did other individuals. over time, these resistant individuals became increasingly common. in response to treatment of staphylococcus aureus infections with methicillin, bacterial populations gradually began to synthesize cell walls using a protein that was not affected by methicillin.

Several billion years ago which gas was the least prevailant in the atmosphere