Which of the following is incorrect?
- APorifera: Notochord-absent,Digestive system-absent,Circulatory system-absent,Segmentation-absent
- BCoelenterata: Notochord-absent,Digestive system-incomplete,Circulatory system-absent,Segmentation-absent
- CAnnelida: Notochord-absent,Digestive system-complete,Circulatory system-present,Segmentation-present
- DEchinodermata: Notochord-absent,Digestive system-incomplete,Circulatory system-present,Segmentation-present
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Similar Questions
What is common between the trichocysts of $Paramecium$ and the nematocysts of $Hydra$?
Medium
View SolutionMatch the organisms given in column-$I$ with their common name given in column-$II$ and choose the correct option.
Column-$I$ (Organisms) Column-$II$ (Common name) $A$. Pennatula $i$. Sea-fan $B$. Gorgonia $ii$. Sea-pen $C$. Adamsia $iii$. Sea-Anemone $D$. Cucumaria $iv$. Sea-cucumber
| Column-$I$ (Organisms) | Column-$II$ (Common name) |
| $A$. Pennatula | $i$. Sea-fan |
| $B$. Gorgonia | $ii$. Sea-pen |
| $C$. Adamsia | $iii$. Sea-Anemone |
| $D$. Cucumaria | $iv$. Sea-cucumber |
Medium
View SolutionChoose the correct option for the following statements:
$(i)$ Metamerism is a characteristic feature of $Annelida$ / $Arthropoda$.
$(ii)$ Internal buds in sponges are called $Gemmules$ / $Gemmi$.
$(i)$ Metamerism is a characteristic feature of $Annelida$ / $Arthropoda$.
$(ii)$ Internal buds in sponges are called $Gemmules$ / $Gemmi$.
Easy
View SolutionMatch the following columns:
Column-$I$ Column-$II$ $(a)$ Amphibia $(1)$ Air bladder $(b)$ Mammalia $(2)$ Cartilaginous notochord $(c)$ Chondrichthyes $(3)$ Mammary gland $(d)$ Osteichthyes $(4)$ Pneumatic bones $(e)$ Cyclostomata $(5)$ Dual habitat $(f)$ Aves $(6)$ Jawless,circular,sucking mouth
| Column-$I$ | Column-$II$ |
| $(a)$ Amphibia | $(1)$ Air bladder |
| $(b)$ Mammalia | $(2)$ Cartilaginous notochord |
| $(c)$ Chondrichthyes | $(3)$ Mammary gland |
| $(d)$ Osteichthyes | $(4)$ Pneumatic bones |
| $(e)$ Cyclostomata | $(5)$ Dual habitat |
| $(f)$ Aves | $(6)$ Jawless,circular,sucking mouth |
Medium
View SolutionWhich of the following is an incorrect pair?
Medium
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