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
Student Visas
-
Arts, Commerce & Sciences
Exams
Colleges
Upcoming Events
Resources
-
Management and Business Administration
Colleges & Courses
Predictors
-
Learn
Online Courses
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
Predictors & Articles
Colleges
Resources
-
Media, Mass Communication and Journalism
Colleges
Resources
-
Finance & Accounts
Top Courses & Careers
Colleges
Get Answers to all your Questions
- #Medical
- #Class 11
- #National Eligilibility Cum Entrance Test
- #National Eligibility Cum Entrance Test
- #Diversity in Living World
- #Biology
Which of the following have a complete digestive system?
Option: 1
Echinoderms and Aschelminthes
Option: 2
Echinoderms and Molluscs
Option: 3
Echinoderm and Arthropod
Option: 4
All of these
Answers (1)
Digestion in Echinoderms:
- They have a complete digestive system with mouth located on the ventral side and anus on the dorsal side.
Nervous System in Echinoderms:
- They have a simple nervous system with a central nerve ring and five radial rings. There is no grouping of nerves, so brain-like structure is absent.
Reproduction and Development in Echinoderms:
- They are dioecious animals. Sexes are separate.
- Usually external fertilization takes place.
- Development is indirect with the formation of free-swimming larvae.
- They also show high capacity of regeneration.
-
Echinoderms, molluscs and arthropods have a complete digestive system.
View full answer
NEET 2024 Most scoring concepts
- Just Study 32% of the NEET syllabus and Score up to 100% marks
