What does a conceptual model provide? Select one:

a. A drawing of the different parts of a system.

b. An equation that ties together data

c. A physical representation of what is being studied.

d. A mental explanation that ties together ideas.

mark me as brainliest

d. A mental explanation that ties together ideas.

i'd say that the moon rock is about 2.2 billion years old.

the generally accepted parts of modern cell theory include: all known living things are made up of one or more cells. all living cells arise from pre-existing cells by division. the cell is the fundamental unit of structure and function in all living organisms.