Why is satellite imagery useful to ecologists? small habitats can be observed individual high resolution of ecosystems is possible large-scale regional studies of biomes can be mapped all vegetation types of ecosystems can be identified the predominant vegetation of an ecosystem can be monitored the fauna of an ecosystem can be counted natural disasters can be surveyed all natural factors can be identified outstanding environmental factors can be monitored

Explanation:

The study of ecologists can be difficult when they come across small habitats and different ecosystems as essential factors in their research. This is because small habitats can be extremely complicated to fully view and evaluate because of their limited space. In addition, ecosystems are very complex and difficult to evaluate. In these cases, satellite imagery can help ecologists with meaningful information about ecosystems and small habitats that the ecologist could not see.

Satellite imagery can enlarge a very small habitat and can shrink very large ecosystem systems that the researcher would have difficulty assessing.

the dna molecules have a negative charge because of the phosphate groups in their sugar-phosphate backbone, so they start moving through the matrix of the gel towards the positive pole. power is turned on and dna fragments migrate through gel (towards the positive electrode).

explanation: