Which flowchart correctly lists the structures in order from smallest to largest?

What was the land like over 500 million years ago? what was under the sea?

Some birds look for food near cattle and other livestock. the movement of the cattle churns up the ground, making insects available to the birds. the cattle appear to be unaffected by the presence of the birds. what kind of relationship exists between the birds and the cattle? o a. parasitism o b. commensalism o c. predation o d. mutualism

What is the most important inorganic material for livings things? ! due tomorrow!