Which of the following animal excretes solid urine?

Category: QuestionsWhich of the following animal excretes solid urine?
Editor">Editor Staff asked 2 months ago

Which of the following animal excretes solid urine?
 
(a) Crow
 
(b) Fishes
 
(c) Kangaroo rat
 
(d) Camel
 
I got this question in a national level competition.
 
This intriguing question originated from Organisms and Populations in portion Organisms and Populations of Biology – Class 12

1 Answers
Editor">Editor Staff answered 2 months ago

Right choice is (c) Kangaroo rat
 
To elaborate: Solid urine is excreted by kangaroo rat to avoid excess loss of water. They are rodents and their kidneys have developed mechanisms to highly concentrate their urine. They have longer papilla in their kidneys.