Plankton is part of an aquatic ecosystem
Exchanging oxygen and carbondioxide between air and lungs because it just involves breathing system but everything else involves hormones.........
HOPE IT HELPS !!!
Explanation:
All white blood cells are produced and derived from multipotent cells in the bone marrow known as hematopoietic stem cells. Leukocytes are found throughout the body, including the blood and lymphatic system.
<span> It has a transmitted radio signal aimed by
an antenna in a certain direction, and a receiver that detects the
echoes off any objects in the path of the signal.
Hope that helps! :)
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