The teacher tells me I need to study pictures. The overall three-dimensional shape of a polypeptide is called the a. double helix b. primary structure. Read all of the statements below. Life has many hierarchical levels at which study may be done. Each level of biological structure has emergent properties.
Cells are organism's basic units of structure and function.
Regulatory mechanisms ensure a dynamic balance in living systems. Diversity and unity are the dual faces of life on Earth. Evolution is a core theme of biology. As a multidisciplinary process, science works by testing hypotheses and forming conclusions. Organisms depend on the cohesion of water molecules.