Fast! two students are comparing scientific experiments to investigations. they came up with the following ideas. student a: testing plant growth in different types of soils student b: comparing the water level in a lake during different times of the year one student gave an example of an investigation and the other gave an example of an experiment. which student gave an example of a scientific investigation? student a because it requires a hypothesis student b because it requires a hypothesis student a because it can be done in natural settings student b because it can be done in natural settings

Explain why methicillin resistant staphlococcus aureus (mrsa) is more prevalent now than it was only 30 years ago. a. antibiotics cause mutations in staphlococcus aureus that lead to an increase in the number of methicillin-resistant strains. b. methicillin resistance causes an infection to spread more rapidly.c. frequent and inappropriate use of methicillin-type antibiotics has provided selective pressure that has resulted in an increase in the proportion of methicillin-resistant strains of staphlococcus aureus.d. diseases like aids have made people more vulnerable to infections from staphlococcus aureus.