Serve as energy-storage substances in plankton etc .
The lymphatic system transports nutrients and wastes and also plays a role in the immune system
1) bottom
2) top
The female cones are located at the top of the tree while make cones are at the bottom. The placement of cones is important in reproduction. Because cross-pollination between trees is desired. Wind will bring pollen from the male cone to female cones from other trees.