First lets look at what a protist is: Protist: Any eukaryote that is not a plant, animal, or a fungus. A majority of protists are unicellular, but some are multicellular or â¦ colonial. Protists have been split into five supergroups: Excavata, Chromalveolata, Rhizaria, Archaeplastida, and Unikonta.he protists are a diverse group of eu â¦ karyotes that cannot be classified as animals, plants, or fungi. Organisms in the Protista kingdom include amoebae, red algae, dinoflagellates, diatoms, euglena and slime molds.
capillary bed small intestine â superior mesenteric vein â hepatic portal vein â liver sinusoids â hepatic vein â inferior vena cava â heart (see #1 for blood flow through heart) â systemic arteries. 4. Trace the path of a molecule of testosterone produced in the left testicle as it travels to the right atrium.
Right Side of the Heart. 1  Blood enters the heart through two large veins, the inferior and superior vena cava, emptying oxygen-poor blood from the body into the right atrium of the heart. 2  As the atrium contracts, blood flows from your right atrium into your right ventricle through the open tricuspid valve.eft Side of the Heart. 1  The pulmonary vein empties oxygen-rich blood from the lungs into the left atrium of the heart. 2  As the atrium contracts, blood flows from your left atrium into your left ventricle through the open mitral valve.