Which of the following phyla possess an open | vedclass

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(D) In an open circulatory system,blood is pumped out of the heart into blood sinuses (body cavities) where the cells and tissues are directly bathed

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Only $a$ and $d$

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(D) In an open circulatory system,blood is pumped out of the heart into blood sinuses (body cavities) where the cells and tissues are directly bathed in it.$1$. Arthropoda $(a)$: These organisms possess an open circulatory system.$2$. Annelida $(b)$: These organisms possess a closed circulatory system.$3$. Chordata $(c)$: These organisms possess a closed circulatory system.$4$. Mollusca $(d)$: Most molluscs (except cephalopods) possess an open circulatory system.Therefore,both Arthropoda and Mollusca exhibit an open circulatory system.

Column-$I$	Column-$II$
$(a)$ Contractile vacuole	$(i)$ Excretory unit
$(b)$ Parapodia	$(ii)$ Food ingestion
$(c)$ Flame cells	$(iii)$ Locomotion
$(d)$ Nematocysts	$(iv)$ Osmoregulation

Column $X$	Column $Y$
$(1)$ Platyhelminthes	$(P)$ Malpighian tubules
$(2)$ Aschelminthes	$(Q)$ Nephridia
$(3)$ Arthropoda	$(R)$ Flame cells
$(4)$ Annelida	$(S)$ Renette cells

Which of the following phyla possess an open circulatory system?

Similar Questions

Match the following columns:
Column-$I$ Column-$II$
$(a)$ Contractile vacuole $(i)$ Excretory unit
$(b)$ Parapodia $(ii)$ Food ingestion
$(c)$ Flame cells $(iii)$ Locomotion
$(d)$ Nematocysts $(iv)$ Osmoregulation

Which of the following characteristics is $NOT$ shared by birds and mammals?

How many of the following phyla exhibit diploblastic and tissue-level organization?
Porifera,Coelenterata (Cnidaria),Ctenophora,Platyhelminthes,Aschelminthes

These animals are oviparous or ovoviviparous and exhibit internal fertilization.

Select the correct match for $X$ and $Y$:
Column $X$ Column $Y$
$(1)$ Platyhelminthes $(P)$ Malpighian tubules
$(2)$ Aschelminthes $(Q)$ Nephridia
$(3)$ Arthropoda $(R)$ Flame cells
$(4)$ Annelida $(S)$ Renette cells

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