Question

What is double circulation ? Why is it found in birds and mammals and not fish


What is double circulation ? Why is it found in birds and mammals and not fish oy me tubular part of the nephron in hun What are the factors on which the amount ofwater reabsorbed depends? Draw a diagram of Human excretory system and label the following parts: (i) Ureter (ii) Urinary bladder (iii) Urethra (iv) Left Kidney Intermediate Which mechanism plays an important role in transportation of water in plants? (i) during day time. (ii) at night (i) List in tabular form,two ways in which transpiration is different from translocation' (ii) Why do plants have a slow transport system? What is double circulation? Why is it found in birds and mammals and not in fish? What is lymph? How is the composition of lymph different from blood plasma?List lymph. List four strategies used by the plants for excretion? Draw a schematic representation of transport and exchange of oxygen and carbon d

Answer 1

Double circulation is the circulation in which blood travels twice through the heart in one complete cycle of body
It is found only in mammals as they r the organim with high energy requirements

Answer 2

Answer:

Double circulation is the circulation in which blood travels twice through the heart in one complete cycle of body

It is found only in mammals as they r the organim with high energy requirements

#they need more energy because they are warm blooded.