Match the level of organization in nature

lvl 2 - Molecules consist of atoms

lvl 3 - Cells consist of molecules

lvl 4 - Organisms consist of cells

lvl 5 - Populations consist of organisms

lvl 6 - Communities consist of populations

lvl 7 - Ecosystems consist of communities interacting with their environment

lvl 8 - The biosphere consists of all ecosystems on Earth

Explanation:

Cytoplasm and cytoskeleton both provide support for a cell and hold everything together. Transport proteins in the cell membrane allow helpful molecules such as glucose to enter the cell. They also act as enzymes that speed up processes and indicators that warn the cell if danger is nearby.