Radio waves need a medium to transfer.
Answer:
Penicillin, direct
Explanation:
this scientist has to inoculate the parent population using plates that contains penicillin in them. we call this approach the direct selection.
In the direct selection, bacteria is grown on a material that has penicillin in it. the goal is to find mutants that have resistance to penicillin. only these resistant ones would grow and then a direct identification would be done.
Answer:
The correct answer is - option C. type of car.
Explanation:
An independent variable in any study, experiment, or research is a factor or variable which is the only factor that is manipulated or changed and directly affects the dependent variable. It is a factor that influences the result with the change in it.
In this case, there are all other factors are constant except the type of cars which is the independent variable as a change in it leads to the change in the distance of rolling.
Answer:
What are great white shark symbiotic relationships? In the animal world, if the relationship benefits both species it is known as a symbiotic relationship. ... The shark and remora relationship benefits both species. Remoras eat scraps of prey dropped by the shark.
Explanation:
Hope I helped.
