Animal Kingdom Question 217
Question: Assertion : Metamerism is the characteristic of annelida. Reason : Metamerism is one type of body segmentation.
Options:
A) If both the assertion and the reason are true and the reason is a correct explanation of the assertion
B) If both the assertion and reason are true but the reason is not a correct explanation of the assertion
C) If the assertion is true but the reason is false
D) If both the assertion and reason are false
Show Answer
Answer:
Correct Answer: B
Solution:
The body of annelids is divided into segments called metameres, externally ring like grooves (annuli) and internally by vertical partitions called septa.
The external segmentation corresponds to internal segmentation.
This phenomenon is called metamere or metameric segmentation.
Phylum annelida represents the first group of metazoan animals developing a true coelom with metameric segmentation.
BETA
