What are the 2 organisms that are being crossed to make a mule

Donkey and horse are the organisms that are being crossed to make a mule. When a male donkey is breed with female horse, mule is produced. Mule has the characteristics of both horse and donkey. Mule is more in height from donkey and less than horse. It is a very useful animal. Mule is usually found in hilly and mountainous areas for the transportation of goods.

on the planet jupiter, the acceleration due to gravity is approximately 26 m s2 , roughly 2.7 times the acceleration due

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. as the ventricle contracts, blood leaves the heart through the pulmonic valve, into the pulmonary artery and to the lungs where it is oxygenated.