Class 9 Exam  >  Class 9 Videos  >  Biology for Class 9  >  Chordates - Part 1 (Easy Explanation)

Chordates - Part 1 (Easy Explanation) Video Lecture | Biology for Class 9

23 videos|69 docs|55 tests

Top Courses for Class 9

FAQs on Chordates - Part 1 (Easy Explanation) Video Lecture - Biology for Class 9

1. What are chordates?
Ans. Chordates are a group of animals that have a notochord, a hollow nerve cord, pharyngeal slits, and a post-anal tail at some point in their life cycle.
2. What are some examples of chordates?
Ans. Some examples of chordates include fish, amphibians, reptiles, birds, and mammals.
3. What is a notochord?
Ans. A notochord is a flexible rod-like structure that provides support to the body and helps in locomotion. It is present in the embryos of chordates and is replaced by the backbone in vertebrates.
4. What is the function of the hollow nerve cord in chordates?
Ans. The hollow nerve cord in chordates serves as the central nervous system, transmitting signals between different parts of the body and the brain. It plays a crucial role in coordinating movements and responses to stimuli.
5. What are pharyngeal slits in chordates?
Ans. Pharyngeal slits in chordates are openings in the pharynx (throat) region that connect the mouth cavity to the outside environment. In aquatic chordates, these slits are used for filter feeding and respiration, while in terrestrial chordates, they are modified for other functions such as hearing or swallowing.
23 videos|69 docs|55 tests
Explore Courses for Class 9 exam
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
10M+ students study on EduRev
Related Searches

pdf

,

Viva Questions

,

Chordates - Part 1 (Easy Explanation) Video Lecture | Biology for Class 9

,

Chordates - Part 1 (Easy Explanation) Video Lecture | Biology for Class 9

,

Exam

,

mock tests for examination

,

Sample Paper

,

Previous Year Questions with Solutions

,

Free

,

Important questions

,

ppt

,

Semester Notes

,

shortcuts and tricks

,

MCQs

,

practice quizzes

,

past year papers

,

Summary

,

study material

,

Objective type Questions

,

Extra Questions

,

Chordates - Part 1 (Easy Explanation) Video Lecture | Biology for Class 9

,

video lectures

;