Which class shows 8 dorsal plates of shell?

The upper dorsal part of chelone shell

The upper dorsal part of chelone shell

Which movable chitinous plate is joined with dorsal part of head :- (a) Labrum (b) Clypeus (c) Labium (d) Forehead or frons

Which is present on the dorsal side of brain?

Which shell is outer and largest shell for elements

Which moveble chitneous plate joined with dorsal part of head :-

Using electron-dot diagrams which show only the outermost shell electrons, show how a molecule of oxygen, O_(2) , is formed from two oxygen atoms. What name is given to this type of bonding? (At. No of oxygen=8)

Today the teacher in the class showed a slide to his students with the help of microscope. To which micro-organism does this sli8de belong?

The diagram alongside shows a lever in use : To which class of levers does it belong ?

The diagram below shows a lever in use : To which class of levers does it belong ?