Choose the incorrect statement.
- AAnnelids possess a double ventral nerve cord.
- BPlatyhelminthes have an organ level of organization.
- CReptiles are poikilotherms.
- DThe heart is two-chambered in amphibians.
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Similar Questions
In which of the following is the genus name,two characters,and its phylum mismatched,while the other three are matched correctly?
Genus Name Two Characters Phylum $A$. Pila $(i)$ Segmented body,$(ii)$ Radula in mouth Mollusca $B$. Asterias $(i)$ Spiny skin,$(ii)$ Water vascular system Echinodermata $C$. Sycon $(i)$ Pore-bearing,$(ii)$ Canal system Porifera $D$. Periplaneta $(i)$ Jointed appendages,$(ii)$ Chitinous exoskeleton Arthropoda
| Genus Name | Two Characters | Phylum |
|---|---|---|
| $A$. Pila | $(i)$ Segmented body,$(ii)$ Radula in mouth | Mollusca |
| $B$. Asterias | $(i)$ Spiny skin,$(ii)$ Water vascular system | Echinodermata |
| $C$. Sycon | $(i)$ Pore-bearing,$(ii)$ Canal system | Porifera |
| $D$. Periplaneta | $(i)$ Jointed appendages,$(ii)$ Chitinous exoskeleton | Arthropoda |
Medium
View Solution$A.$ Animals are multicellular organisms composed of eukaryotic cells.
$R.$ Sponges do not perform photosynthesis and obtain nutrition by absorption.
$R.$ Sponges do not perform photosynthesis and obtain nutrition by absorption.
Medium
View SolutionWhich of the following is not correctly matched?
Medium
View SolutionFeatures common to the animals belonging to class-$Amphibia$ and class-$Reptilia$ are
Medium
View SolutionWhich one of the following pairs of animals is correctly matched with the kind of their body symmetry?
MediumAIEEE 2003
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