What is the site of lipid and protein assembly called?

What is the answer for the complicated molecules that make up living things usually contain carbon. why is carbon so important in these molecules?

Cells destroy body cells infected by a virus or bacteria.

Linda and julia are trying to determine whether their ideas are scientific or pseudoscientific. linda's idea is free of bias. julia's idea gives the same result when tested repeatedly. which statement is correct about linda and julia's idea?