Choose the correct option from the following statements:
$(i)$ $Pleurobrachia$ and $Ctenoplana$ are examples of the phylum $Ctenophora$.
$(ii)$ $Spongilla$ is a freshwater sponge.
$(i)$ $Pleurobrachia$ and $Ctenoplana$ are examples of the phylum $Ctenophora$.
$(ii)$ $Spongilla$ is a freshwater sponge.
- A$(i)$ is true,$(ii)$ is false
- B$(i)$ is false,$(ii)$ is true
- CBoth $(i)$ and $(ii)$ are true
- DBoth $(i)$ and $(ii)$ are false
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Similar Questions
Fill in the blank spaces appropriately in the table below:
Phylum/Class Excretory organ Circulatory system Respiratory organ Arthropoda $...............$ $...............$ Lungs/Gills/Tracheal system $...............$ Nephridia Closed Skin/Parapodia $...............$ Metanephridia Open $...............$ Amphibia $...............$ Closed Lung
| Phylum/Class | Excretory organ | Circulatory system | Respiratory organ |
|---|---|---|---|
| Arthropoda | $...............$ | $...............$ | Lungs/Gills/Tracheal system |
| $...............$ | Nephridia | Closed | Skin/Parapodia |
| $...............$ | Metanephridia | Open | $...............$ |
| Amphibia | $...............$ | Closed | Lung |
Medium
View SolutionMatch the following columns:
Column-$I$ Column-$II$ $(a)$ Gill slits open $(i)$ Lamprey $(b)$ Absence of paired fins $(ii)$ Scorpion $(c)$ Calcareous shell $(iii)$ Wuchereria $(d)$ Absence of flame cells $(iv)$ Oyster $(e)$ Ecdysis $(v)$ Shark
| Column-$I$ | Column-$II$ |
| $(a)$ Gill slits open | $(i)$ Lamprey |
| $(b)$ Absence of paired fins | $(ii)$ Scorpion |
| $(c)$ Calcareous shell | $(iii)$ Wuchereria |
| $(d)$ Absence of flame cells | $(iv)$ Oyster |
| $(e)$ Ecdysis | $(v)$ Shark |
Difficult
View SolutionWhich pair represents a group of hermaphrodite animals?
Easy
View SolutionConsider the following features:
$(a)$ Organ system level of organisation
$(b)$ Bilateral symmetry
$(c)$ True coelomates with segmentation of body
Select the correct option of animal groups which possess all the above characteristics.
$(a)$ Organ system level of organisation
$(b)$ Bilateral symmetry
$(c)$ True coelomates with segmentation of body
Select the correct option of animal groups which possess all the above characteristics.
$P$ - Assertion: Circulatory system is present in Annelids.
$Q$ - Reason: Circulatory system is absent in Aschelminthes.
$Q$ - Reason: Circulatory system is absent in Aschelminthes.
Easy
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