Answer:
the independent variable is the Mosquito repellent on the arms The dependent is the amount of mosquito
D. Erasmus Darwin - competition and sexual selection as an impetus for change
Explanation:
I think the answer is B . . . .
Answer:
Scanning electro microscopy
Explanation:
"A scanning electron microscope (SEM) scans a focused electron beam over a surface to create an image. The electrons in the beam interact with the sample, producing various signals that can be used to obtain information about the surface topography and composition"
Reference: Nanoscience Instruments. “Scanning Electron Microscopy.” Nanoscience Instruments, 2019
