wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

Which of the following is/are adaptations seen in birds that reduce their body weight for flight?

A
Feathers
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
Bones with air cavities
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
C
Absence of urinary bladder
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
D
Lungs with air sacs
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct options are
B Bones with air cavities
C Absence of urinary bladder

Birds have many adaptations to reduce their body weight. The bones are hollow and filled with air cavities. This makes the body light and aids in flying. Birds also consume much less amount of water and excrete solid urine which is formed of uric acid instead of urea which otherwise requires lots of water to be excreted out. They also lack urinary bladder. This makes their body light and helps them to take flight.


flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Adaptations of Birds
BIOLOGY
Watch in App
Join BYJU'S Learning Program
CrossIcon