P (Assertion): The first circulatory system i | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(B) $1$. Phylum Annelida is the first group of animals to exhibit a closed circulatory system.$2$. Phylum Annelida is also the first group of animals

Vedclass · Accepted Answer

$P$ and $Q$ are both true,but $P$ is not the correct explanation of $Q$.

Vedclass · Answer

(B) $1$. Phylum Annelida is the first group of animals to exhibit a closed circulatory system.$2$. Phylum Annelida is also the first group of animals to possess a true coelom (eucoelom),which is a body cavity lined by mesoderm on both sides.$3$. While both statements are scientifically accurate,the presence of a circulatory system is not the direct cause for the development of a true coelom. They are two distinct evolutionary advancements observed in this phylum.$4$. Therefore,both statements are true,but $P$ is not the correct explanation for $Q$.

$P$ (Assertion): The first circulatory system is observed in the phylum Annelida.
$Q$ (Reason): The first true coelom is observed in the phylum Annelida.

Similar Questions

Which of the following animals does $not$ undergo metamorphosis?

Which one of the following exhibits a concentric "tube within a tube" body plan?

Assertion $A$: Annelids exhibit extracellular digestion.
Reason $R$: The digestive tract in annelids is complete.
Which option is correct for Assertion $A$ and Reason $R$?

Which of the following is $NOT$ a characteristic of the phylum $Annelida$?

What is the phenomenon called where the body of some animals is divided into identical segments both externally and internally?

Vedclass Test Series

Exam Paper Generator

Online Exam Module

$P$ (Assertion): The first circulatory system is observed in the phylum Annelida.$Q$ (Reason): The first true coelom is observed in the phylum Annelida.