P (Assertion): Earthworms have a closed type | vedclass

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Question

(B) $1$. Assertion $(P)$: Earthworms $(Pheretima)$ possess a closed circulatory system,which means blood is confined within blood vessels and capillar

Vedclass · Accepted Answer

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

Vedclass · Answer

(B) $1$. Assertion $(P)$: Earthworms $(Pheretima)$ possess a closed circulatory system,which means blood is confined within blood vessels and capillaries. This statement is true.$2$. Reason $(Q)$: In earthworms,hemoglobin is dissolved in the blood plasma,not contained within red blood cells. This statement is also true.$3$. Relationship: While both statements are scientifically accurate,the presence of hemoglobin in the plasma is a characteristic of the blood composition,not the direct cause of the circulatory system being 'closed'. Therefore,$P$ is not the correct explanation for $Q$.

$P$ (Assertion): Earthworms have a closed type of circulatory system.
$Q$ (Reason): Earthworms have hemoglobin dissolved in their blood plasma.

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$P$ (Assertion): Earthworms have a closed type of circulatory system.$Q$ (Reason): Earthworms have hemoglobin dissolved in their blood plasma.