Acell whose nucleus is not bound by a membrane

How are rocks that cooled within magma chambers found on earth’s surface today? they are pushed up by magma under earth’s surface. they are revealed by erosion of earth’s surface over time. they are pushed to earth’s surface because of their larger size. they are revealed at earth’s surface due to their low density.

What is the difference between bacterial infections and viral infections?

Number and variety of living organisms includes genetic, species, and ecological types