Biology, asked by tprajwal6, 9 months ago

name the hard calcarous skeleton of cnidarians

Answers

Answered by Anonymous

1

Only the cnidarian groups whose members secrete calcareous skeletons (Hydrozoa and Anthozoa) have abundant fossil records. Rugosa and Tabulata are limited to the Paleozoic. ... The earliest definite cnidarian fossils are from the Cambrian, however Ediacaran organisms such as Namapoikea and Cloudina might be stem cnidarian.

Previous Question

Next Question

Similar questions

Social Sciences, 4 months ago

Strength and weakness of a constitutional provision of the vote of rejection...

Math, 4 months ago

state whether each of the following statement is true or false .justify your answer . i) {2,3,4,5} and {3,6} are disjoint sets. ii) { a,e,i,o,u} and { a,b,c,d} are disjoint sets. iii) { 2,6,10,14} and {3,7,11,15} are disjoint sets. iv) { 2,6,10} and {3,7,11} are disjoint sets.

English, 4 months ago

State Fleming's left hand rule.. $\\ \\ \\ \\ \\$ $\sf \colorbox{red} {\colorbox{magenta} {\colorbox{plum} {\colorbox{cyan} {\colorbox{pink}{good \: morning}}}}}$ ...

Economy, 9 months ago

What is the measure of Lx? Angles_ame sot necessarily drauen to scale y Z Z 248 WL x=...

Hindi, 9 months ago

2. राजा ने अपनी जान बचाने वाले नौजवानों का धन्यवाद कैसे किया? 3. तीसरे नवयुवक ने राजा से क्या माँगा? 1. छठे नौजवान ने राजा के सामने अपनी कौन-सी अनोखी इच्छा रखी? pls pls please answer!!!!it's very urgent...

English, 1 year ago

Pierre said, “I'll name him after Saint Joseph.” —into indirect speech...

Geography, 1 year ago

Describe the formation of earth...

Science, 1 year ago

How can you prevent soil erosion.