What is an example of an event that can compromise an ecosystem

The skeletal system performs a variety of functions that are crucial to maintaining life processes. what function is performed in the bone marrow, but not in the ossified bones of the skeleton? a oxygen transportation c mineral storage b. muscle attachment d red blood cell production

What is a cordon and where is it found

Hummingbirds drink nectar from flowers, while robins eat plant seeds. what does this reduce?