Decide if each of the following are biotic or abiotic factors: mushroom (i think biotic) tree (i think biotic) dirt (i think abiotic) grapes (i think abiotic) grass( i think biotic) paper (i think abiotic) steak (i think abiotic) coral (i think biotic) athlete's foot (i think abiotic) salad (i think abiotic) mold (i think biotic)

What is the number of phosphates in an atp molecule

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

Which could be a pathway of food through an ecosystem