The picture shows the electron transport chain that occurs in the thylakoid membrane of the chloroplast. which of these steps is shown in the picture?

Which of the following is a possible reason for sleep? a) growth b)digestive c)speed d)intelligence

List charasteristics of athenosphere

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