Giardia is a eukaryotic organism that can cause intestinal illness in dogs, cats, and humans.
Which of the following distinguishes Giardia from all prokaryotes?
Choose 1
Choose 1

(Choice A)
A
It has cytoplasm.

(Choice B)
B
It has a nucleus.

(Choice C)
C
It is single-celled.

(Choice D)
D
It can reproduce.

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.

Which of the following produces carbon dioxide? a. plants b. animals c. decomposers d. all of the above

Explain why biological control methods are generally environmentally superior to chemical pest control methods.