Secondary Succession: An area that once had and , and a full . Then a or natural takes place, such as a , , , or . -The is still there and begin to grow back. -Since soil is already available, secondary succession is a than primary succession.

How is the male reproductive system different from other body systems? it isn’t necessary to vital signs. it monitors other body systems, and adjusts if necessary. it transports items from one system to another. it is the only system that produces hormones in the male.

How do symptoms created by inflammation the doctor

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