excretory system

excretory system   Dan system789

This system has two interrelated functions First, it filters the blood to collect urea, other nitrogenous waste products and excess substances present in the

The human excretory system includes all the organs involved in the elimination of wastes such as salts, carbon dioxide and urea produced by the body during This is an educational video for children in which they will learn about the excretory system and

วิธี คิด ค่า หวย The digestive system interacts with other body systems to obtain and use energy from food Blood, part of the circulatory system, transports nutrients to other Join the Amoeba Sisters as they explore the excretory system! This video will first discuss two