Need asap ! density refers to a physical property that is measured using a ratio of divided by so that two objects of the same size can still have very different density. a. mass, volume b. height, width c. weight, height d. concentration, mass

A. mass, volume.

Remember this:

A heart split in half: The top resembles an M while the bottom resembles a V

That's mass over volume

Hope this helps! <3

the function of the protein macromolecule is to move things in and out of the cell and transport other molecules in the body. there are many functions of proteins. they are the basic building blocks of living things and are responsible for the growth and repair of body cells and tissues.

explanation:

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.