Question

write characteristics of peteromyzon?

50 marks ques...plss don't spam and copy

Answer 1

$\textbf{Hey..mate here is yur ans...}$
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⏩ $\pink{Peteromyzon}$ ⏪

⏩ $\textbf{Peteromyzon}$ also known as $\blue{Lamprey.}$

⏩It's length upto 1mm.

⏩ They have $\textbf{6 - 7 pairs}$ of $\orange{Gill slits.}$

⏩ The Eyes of $\green{Lamprey}$ is are $\purple{Functional.}$

⏩ They have $\textbf{10 pairs}$ of $\green{Cranial Nerves.}$

⏩ In $\textbf{Lamprey}$ They have More developed brain then $\textbf{Myxine ( Hag - Fish ).}$

⏩ They are $\red{Unisexual.}$

⏩ They Migrate to $\blue{Freshwater}$ for $\red{breeding / spawning}$ $\textbf{( Anadromous Migration ).}$

⏩ They have $\pink{Indirect development}$ Through $\textbf{Ammocete Larva.}$

Note➡ $\red{Peteromyzon}$ Undergo Enadromous Migration $\textbf{( M.w To F.w )}$ into rivers for spawning . After breeding they die.

⏩ Their $\purple{Ammocete - larva}$ after 14 - 21 days Hatched out and Migrain back to M.w.

⏩ The beginning and end of $\textbf{Peteromyzon}$ occurring from F.w. but they living Their life in M.w.

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$\textbf{HOPE IT HELPS U}$✌

Answer 2

Hello friend!

Petromyzon

• They belongs to the phylum Chordata.

• The head is kind of cylindrical and the tail is compressed.

• The skeleton is completely cartilaginous.

• Cranium present is primitive or primordial .

• The respiratory system consists of seven pairs of gill pouches.

• They also have 10 pairs of cranial nerves.

Hope it helps!