Skip to main content

AMIMAL KINGDOM-STAR FISH AND SEA URCHINS

 

STARFISH  ,SEA URCHINS, AND  OTHER ,relatives (including  feather star,basket star,  sea daisies, sea lilies,and sea cucumbers)  make  up   the phylum   Echinoderm. A unique  feature   of  the Echinoderms   is  the  water  vascular  system,  which  consists  of  a  series  of   water   filled   canals   from  which  protrude  thousands  of  tiny  tube    feet  . The  tube feet   may  be  used  for  movement, feeding, or  respiration.Other  features  include   pentaradiate  symmetry  that  is  the  body  can  be  divided   into  five parts   radiating   from  the cent re ); no  head ; diffuse ;decentralized    nervous  system  that  lacks  a  brain ;  and  no  excretory  organs.Typically   echinoderms   also  have  an    en do skeleton(internal  skeleton  ) consisting  of a  hard    calcite    ossicles   embedded    in  the   body  wall   and  often  bearing   protruding  spines  or  tubercles .The  ossicles   may  fit  together  form  a   test (as  in  sea  urchins)  or  remain  separate  (  as  in  sea  cucumbers)
 STAR FISH  AND  SEA URCHINES



Comments

Post a Comment

Popular posts from this blog

KEY BOARD SHORT CUTS

While   surfing  the Web,  these commands  could  help  you  and  are absolutely worth learning. By making repetitive motions faster, web surfing becomes so easy  and    pleasant! The following shortcuts can  be   work with desktop versions of Chrome, Firefox, and IE. CTRL-T to launch a new browser tab page. Tabbed pages are very useful: they let you open multiple web pages simultaneously without the same memory load as a full browser window.  Simply press CTRL-T to launch a new tab. Related: use CTRL-Page Up and CTRL-Page Down to navigate between the tabs.  CTRL-Enter to type 'www.' and '.com' Once you ...
Post a Comment
Read more

THE KING OF POP- MICHAEL JACKSON

Michael Joseph Jackson (August 29, 1958 – June 25, 2009) was an American singer, songwriter, and dancer. Dubbed the "King of Pop", he is regarded as one of the most significant cultural figures of the 20th century and one of the greatest entertainers in the history of music.   Michael Jackson is born. Pop sensation Michael Jackson is born on August 29, 1958, in Gary, Indiana. Jackson began performing with his four brothers in the pop group the Jackson 5 when he was a child. ... Jackson released several solo albums in the '70s, but his great breakthrough came in 1979 with Off the Wall.   Known as the "King of Pop," Michael Joseph Jackson was a best-selling American singer, songwriter and dancer. As a child, Jackson became the lead singer of his family's popular Motown group, the Jackson 5.   As a child, Jackson became the lead singer of his family's popular Motown group, the Jackson 5. He went on to a solo career of astonishing w...
Post a Comment
Read more

THE BEATLES -ENGLISH ROCK BAND

The Beatles were an English rock band formed in Liverpool in 1960. The group, whose best-known lineup comprised John Lennon, Paul McCartney, George Harrison and Ringo Starr, are regarded as the most influential band of all time.   The Beatles    were  from    Liverpool, United Kingdom.   In September of 1962 The Beatles recorded their first hit Love Me Do, which charted in UK, and reached the top of the US singles chart. London became their new home since 1963. ... Their October 1963 performance at the London Palladium made them famous in Great Britain and initiated the Beatlemania in the UK.   The most popular Beatle.   Paul McCartney ranked highest, at 35 percent; following by John Lennon (29%), Ringo Starr (11%), and George Harrison (8%). However, there is a gender gap: men favored John, while women preferred Paul.   The Beatles' first record "Love Me Do" was released on October 5, 1962. It was a mode...
1 comment
Read more