Select the individual below that ground glass lenses to very fine specifications so that he was able to develop a microscope for observing and describing living microscopic animalcules.

Antonie van Leeuwenhoek.

Explanation:

Microscope is used to study the objects that are not visible by the naked eyes. The microscope can magnify the object according to the  observer and is helpful to study cellular organization.

The first microscope was discovered by the scientist known as Antonie van Leeuwenhoek. He used microscope to see the animalcules or microscopic animal. The Antonie van Leeuwenhoek was also known as the father of microbiology.

Thus, the answer is Antonie van Leeuwenhoek.

the correct answer is 4) heat and pressure

metamorphic rocks arise from transformation of existing rocks types, in a process called metamorphism. during metamorphism the original rock(prolith) change into metamorphic rock by heating (150-200c) and pressure of more than 1000 bar. the original rock can be sedimentary, igneous, or existing metamorphic rock.