What is the difference between eukaryotic and prokaryotic cells?
a. eukaryotic cells are found in animals, while plant cells are comprised of prokaryotic cells.
b. eukaryotic cells have a plasma membrane, which is lacking in prokaryotic cells.
c. eukaryotic cells have a nucleoid region, which is lacking in prokaryotic cells. d. eukaryotic cells have membrane-enclosed organelles, which are lacking in prokaryotic cells.

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.

What function does the limb sever in each animal? how are the limb bones of the four animals similar? based on these similarities what can be inferred about the evolution of the four animals.

1. describe the structure and function of the specialized cells you observed in the video. 2. research the types of cells present in the kidney.