Which of the following plant like protists are heterotrophs in dark and autotrophs in bright light?
a) Euglenozoids
b) Dinoflagellates
c) Diatoms
d) Brown algae
Explanation: e.g euglena 
Carotenoid pigments are present in ……
a) pyrrophyta
b) chrysophyta
c) euglenophyta
d) both a and c
Euglena is plant like protist belongs to euglenozoids and possesses……flagella.
a) two
b) three
c) four
d) five
Explanation: One flagellum is long protrudes out of reservoir and other is short and never emerge out of reservoir
Euglena changes its shape due to flexible
a) pseudopodia
b) membrane
c) pellicle
d) contractile vacuole
Explanation: The pellicle is a thin skin or film covering for certain protozoans such as euglenoids, plasmodium, or paramecia cell outer membrane.
The euglenozoids species feed on prokaryotes in……..
a) fresh water
b) marine water
c) moist land
d) all of these
Explanation: some parasitize animals, plants and other protists
Which of the following plant like protists are unicellular possessing chlorophyll a and c in addition to carotenoids?
a) Rhodophyta
b) Dinoflagellates
c) Diatoms
d) Brown algae
