How much blood the heart pumps for every square meter of surface area (cardiac index) varies with the age of the individual. For children ages 10Â­13, the average cardiac index is 2.75 liters/m 2 /minute at a resting state. Multiply your body surface area by the cardiac index (2.75 l/m 2 /minute) to determine the liters of blood pumped by your heart in one minute (cardiac output). 2 /minute= ____liters per minute. How does your volume per minute compare to a 2 liter beverage bottle? .
Locomotion in Annelida Before we discuss the details of locomotion in annelids, we have to recapitulate the major subdivisions of the phylum Annelida.Phylum Annelida contains Polychaeta, Oligochaeta and Hirudinea.ocomotor structures. So, Locomotion is the result of co-ordinate effort of all these. Locomotion in Annelida. Before we discuss the details of locomotion in annelids, we have to recapitulate the major subdivisions of the phylum Annelida.
The Annelida and Arthropoda phyla share membership in the broader Animalia category, or kingdom, that includes all animals. From that similarity, however, they go in separate directions. Arthropods and annelids are different types of organisms.The Annelida phylum includes most worms, while the diverse Arthropoda phylum counts arachnids, lobsters and insects among its members.ne difference between Annelid and Arthropod phyla is their diversity. The Annelid phylum contains three classes of organisms: Polychaeta, Oligochaeta and Hirudinea. The first two classes consist of worms differentiated primarily by the use of parapodia for movement; the third includes leeches.