Ms. Snyder's students were studying living things and energy. They emptied a package of yeast into a cup of warm water Next they added 5 grams of sugar. After 15 minutes, the students noticed bubbles
forming on the surface of the water. Using a dropper, they put a sample of the liquid on a glass slide and
looked at the sample with a microscope. The yeast cells were growing and reproducing. The bubbles
were a by-product of the yeast using the sugar for energy
What were the bubbles made of?
A Water
OB Oxygen
OC Hydrogen
SD Carbon dioxide

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.

Human genes only differ by less than percent. a. 1 b. 6 c. 11 d. 16

What are characteristics of minerals? select 3 choices