CBSE Class 10 Answered
1.IN MAMMALS AND BIRDS WHY IS IT NECESSARY TO SEPARTE OXYGENATED AND DE-OXGYENATED BLOOD?
2.DRAW A NEAT DIGRAM OF EXCRETORY SYSTEM OF HUMAN BEINGS AND LABEL ON IT :
(1)LEFT KIDNEY (2) URINARY BLADDER
Asked by aryanmadhav9528 | 11 Jun, 2019, 10:38: AM
Expert Answer
1. Double circulation helps to keep oxygenated and deoxygenated blood from mixing. Such separation allows a highly efficient supply of oxygen to the body. This is useful in animals that have high energy needs, such as humans (as well as birds and other mammals), which constantly use energy to maintain their body temperature.
2. Human Excretory System
Answered by Sheetal Kolte | 11 Jun, 2019, 11:33: AM
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