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
- #National Eligibility Cum Entrance Test
- #Structural Organisation in Animals and Plants
- #National Eligilibility Cum Entrance Test
- #Class 11
- #Biology
- #Medical
Which of the following is absent in the mouth parts of the cockroach?
Option: 1
Mandibles
Option: 2
Hypopharynx
Option: 3
Epipharynx
Option: 4
Labrum
Answers (1)
External Morphology of Cockroach: Head and Mouth parts
Head
- Head lies anteriorly at a right angle to the longitudinal axis of the body.
- Head is triangular in shape
- Head is formed by the fusion of six segments
- It is attached to a flexible neck which allows movement in all directions.
- Head bears a pair of thread-like antennae, a pair of compound eyes and a pair of fenestra or photoreceptors.
- Antennae arise from membranous sockets lying in front of eyes.
- Antennae have sensory receptors that help in monitoring the environment
- The anterior end of the head bears appendages forming biting and chewing type of mouthparts.
Mouth parts
- The mouthparts include a labrum (upper lip), a pair of mandibles, a pair of maxillae and a labium (lower lip).
- Within the cavity enclosed by the mouthparts, a median flexible lobe is present which acts as the tongue (hypopharynx).
- The mouthparts of the cockroach include labrum (upper lip), a pair of mandibles, a pair of maxillae and labium (lower lip). Within the cavity enclosed by the mouthparts, a median flexible lobe is present which acts as the tongue (hypopharynx).
View full answer
NEET 2024 Most scoring concepts
- Just Study 32% of the NEET syllabus and Score up to 100% marks
