13 Which of these organism has flagella on its anterior end?
paramecium
amoeba
euglena
flies
14 Euglena have a light-sensitive --------- or stigma near their anterior ends which senses the light level in the environment
flagellum
eye spot
nucleus
nucleolus
15 In the absence of light, euglena can obtain nutrition by a process called --------
cytokinesis
cytology
phagocytosis
cytosis
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