Describe the relationship between work and power

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 substance in the leaves gives them a green colour?

Ineed your . i'm thinking the answer is none of the above. i know the answer isn't isogamous. the human gametes are: isogamous anisogamous oogamous none of the above