Browse by Stream
-
Engineering and Architecture
Exams
Colleges
Predictors
Resources
-
Computer Application and IT
Quick Links
Colleges
-
Pharmacy
Colleges
Resources
-
Hospitality and Tourism
Colleges
Resources
Diploma Colleges
-
Competition
Other Exams
Resources
-
School
Exams
Top Schools
Products & Resources
-
Study Abroad
Top Countries
Resources
-
Arts, Commerce & Sciences
Colleges
Upcoming Events
Resources
-
Management and Business Administration
Exams
Colleges & Courses
Predictors
-
Learn
Law Preparation
MBA Preparation
Engineering Preparation
Medical Preparation
-
Online Courses and Certifications
Top Streams
Specializations
- Digital Marketing Certification Courses
- Cyber Security Certification Courses
- Artificial Intelligence Certification Courses
- Business Analytics Certification Courses
- Data Science Certification Courses
- Cloud Computing Certification Courses
- Machine Learning Certification Courses
- View All Certification Courses
Resources
-
Medicine and Allied Sciences
Colleges
Predictors
Resources
-
Law
Resources
Colleges
-
Animation and Design
Exams
Predictors & Articles
Colleges
Resources
-
Media, Mass Communication and Journalism
Colleges
Resources
-
Finance & Accounts
Top Courses & Careers
Colleges
Get Answers to all your Questions
- #Biology
- #Class 11
- #National Eligibility Cum Entrance Test
- #Medical
- #National Eligilibility Cum Entrance Test
- #Diversity in Living World
Heart is completely 4 chambered in
Option: 1
Aves
Option: 2
Crocodiles
Option: 3
Mammals
Option: 4
All of these
Answers (1)
Class Aves - Characteristics Features -
- Birds have streamlined bodies covered with feathers.
- Their forelimbs are modified into wings.
- The hind limbs are covered with scales and help in walking, swimming or clasping tree branches.
- Skin is dry. There is no gland.
- They have a bony endoskeleton. They have light and porous bones called pneumatic bones to assist flight.
- They have a monocondylic skull.
- They have a strong breast bone called keel to which the flight muscles are attached.
- They have a four chambered heart.
- They are warm blooded.
- They are dioecious. Fertilization occurs internally. They are oviparous.
- The jaws are modified to form beak.
- They lack urinary bladder.
- They are uricotelic.
- They consist of additional chambers, Crop and gizzard. Three chambered cloaca.
-
Birds, mammals and crocodile (only reptile) have four chambered heart.
View full answer
NEET 2024 Most scoring concepts
- Just Study 32% of the NEET syllabus and Score up to 100% marks
