(C) According to the evolutionary history of plants,$Rhynia$ is considered the common ancestor from which other early vascular plants like $Zosterophy

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(C) According to the evolutionary history of plants,$Rhynia$ is considered the common ancestor from which other early vascular plants like $Zosterophyllum$ and $Psilophyton$ evolved. $Rhynia$ was a simple,leafless,and rootless vascular plant that appeared during the Silurian period. Over time,these primitive forms diversified into more complex structures.

Class 12 Biology Evolution A Brief Account of Evolution

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From which of the following did Zosterophyllum and Psilophyton evolve?

A
Progymnosperms
B
Zosterophyllum
C
Rhynia
D
Psilophyton

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Class 12 Questions

Class 12

Biology Questions

Chapter

Evolution

Subtopic

A Brief Account of Evolution

Birds and mammals in the geological development of the Earth arose in which period?

Medium

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Match the following geological eras in Column $A$ with their respective time periods in Column $B$ and key evolutionary events in Column $C$. Which of the following is the correct match?
Column $A$ Column $B$ and $C$
$i$. Cenozoic $2-65 \ \text{mya}$,Origin of vertebrates
$ii$. Palaeozoic $500-165 \ \text{mya}$,Rise of egg-laying mammals
$iii$. Mesozoic $135-225 \ \text{mya}$,Reptiles dominant
$iv$. Proterozoic $350-500 \ \text{mya}$,Trilobites dominant

Column $A$	Column $B$ and $C$
$i$. Cenozoic	$2-65 \ \text{mya}$,Origin of vertebrates
$ii$. Palaeozoic	$500-165 \ \text{mya}$,Rise of egg-laying mammals
$iii$. Mesozoic	$135-225 \ \text{mya}$,Reptiles dominant
$iv$. Proterozoic	$350-500 \ \text{mya}$,Trilobites dominant

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