Microbes have played a significant role in the advances of the last century, such as for cutting dna and to better understand the microbes that live on and in our bodies.

Restriction enzymes and genome sequencing.

Explanation:

Microbes include all the microscopic organisms that cannot be seen by the naked eye. The microbes can be harmful or beneficial for the living organisms and can be used in medication as well.

The microbes has provided molecular tools and different techniques have been designed to study them. The restriction enzymes also known as molecular scissors used to cut the DNA and further modification of the DNA. The genome sequencing is done to sequence the genomic DNA of the organisms and there used in the medicine.

Thus, the answer is restriction enzymes and genome sequencing.

when you breathe in, or inhale, your diaphragm contracts (tightens) and moves downward. this increases the space in your chest cavity, into which your lungs expand. the intercostal muscles between your ribs also enlarge the chest cavity. they contract to pull your rib cage both upward and outward when you inhale.