Draw a diagram of $Euglena$ and label the following parts:
Flagellum,photoreceptor,eyespot,chloroplast,nucleus,contractile vacuole.

(N/A) The diagram of $Euglena$ shows its characteristic spindle-shaped body.
Key structures include:
$1$. $Flagellum$: $A$ long,whip-like structure used for locomotion.
$2$. $Photoreceptor$: $A$ light-sensitive region located near the base of the flagellum.
$3$. $Eyespot$ $(Stigma)$: $A$ pigmented organelle that helps the organism detect light direction.
$4$. $Chloroplast$: Green,disc-shaped organelles responsible for photosynthesis.
$5$. $Nucleus$: The central control center containing genetic material.
$6$. $Contractile$ $vacuole$: An organelle involved in osmoregulation by expelling excess water.