Thus, pit membranes function as safety valves in the plant water transport system. Averaged across a ... Zwieniecki, M. A. Vascular Transport in Plants. San Diego, CA: Elsevier Academic Press ...

So it's a good job we've got the circulatory system to transport nutrients, water and oxygen to the entire body. Inside you, there is an amazing network of blood vessels, the tubes that carry ...

In addition to the digestive system, the interior of the test also houses the gonads (go) and the water vascular system (rwv). In regular echinoids there are five gonads, each connected to the ...

This exercise illustrates the two major features that all members of the Phylum Echinodermata have in common - the water vascular system and pentaradial symmetry. The take home message is that all ...