How does the nictitating membeane provide an adaptive advantage to frogs?

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

Describe the two types of vascular tissue

The combining form leuk/o means red true or false