during ciliary movement in dugesia it holds the head in slanded pasition. since the cilia are absent in head region the place the head a little raised. thus in such ciliary movement head movements are different from tail movement.
Dugesia have eyespots on one end. They also have their pharynx facing their tail. This is so that while moving in a forward motion they will not be moving through waste and their sensory organs are on the forward moving end.
Front half moves forward, then worm snaps in half
Apparent direction
On its head the Dugesia have lateral lobes and sensory organs called eyespots with make the dugesia look like it actually has eye on its head.
Head - Tail - Tail - Head
hydrophillic head, hydrophobic tail, hydrophobic tail, hydrophillic head
Green algae have a tail (flagellum) that allows it to move around.
Spermiogenesis
during ciliary movement in dugesia it holds the head in slanded pasition. since the cilia are absent in head region the place the head a little raised. thus in such ciliary movement head movements are different from tail movement.
On its head the Dugesia have lateral lobes and sensory organs called eyespots with make the dugesia look like it actually has eye on its head.
(1,head,head),(1,head,tail),(1,tail,head),(1,tail,tail) (2,head,head), (2,head,tail),(2,tail,head),(2,tail,tail), (3,head,head), (3,head,tail),(3,tail,head),(3,tail,tail), (4,head,head), (4,head,tail),(4,tail,head),(4,tail,tail), (5,head,head), (5,head,tail),(5,tail,head),(5,tail,tail), (6,head,head), (6,head,tail),(6,tail,head),(6,tail,tail),
Lets See A Coin
Head - Tail - Tail - Head
A and B is a vector by replacing the tail of the B on the head of the A and the join the tail of the A with the head of the B this method is called head to tail rule
Torso- Abdomen-Posterior-Tail-head-legs-Arms.
smiles
the head to tail rule
Its head can use to penetrate to egg cell and tail can use to move.
church
nothing has only a head and a tail tadpole or coin