Answer:
I think B
Explanation:
Hope it helps! Correct me if I am wrong :>
The answer is host to parasite
Answer:
C. Yes, Trisha should have a group of frogs in her experiment that is not exposed to any pesticide at all
Explanation:
The election of a control group is essential in an experiment. Its principal purpose is to allow the discrimination of the results obtained by the treatment in the study (in this case, the effect of pesticide) from the results that might be a consequence of other factors. The control group must be selected from the same population of the treatment group. All the groups must be similar in every variable that might influence the results, except for the study treatment.
- Control group: Frogs that are not exposed to any pesticide
- Treatment one: Frogs exposed to a certain concentration of pesticide
- Treatment two: Frogs exposed to an increased concentration of pesticides ...
And so, the number of treatment groups will depend on the different concentrations of pesticides Trisha wants to study.
All groups must belong to the same population and of course, to the same species. They must also be exposed to the same variables, excepting for the pesticide variable.
No this is FALSE. It is caused by bacteria infection...normally Staphylococcus aureus (and other Staph) and the toxins they produce.
