Dinoflagellates can not appear

(1) Black

(2) White

(3) More than one option is correct

(4) Pink

(1) Loose cellulose plates in cell wall

(2) The outer surface has more loosening of cell wall than inner

(3) Rapid multiplication

(4) Not harmful for others

(1) Harmful for marine organisms

(2) Gonyaulax

(3) Seen in fresh water

(4) Color is due to pigment in the cell of Dinoflagellates

(1) All, 2, both

(2) Many, 3, transverse flagella 

(3) Most, 2, transverse flagella 

(4) All, 3, longitudinal flagella 

(1) Euglenoids

(2) Dinoflagellates

(3) Diatoms

(4) Eubacteria

(1) Mostly marine

(2) Have pellicle

(3) Lack cell wall

(4) Flexible body

(1) Always photosynthetic

(2) Pigments like higher plants

(3) Pellicle provides flexibility

(4) Found in stagnant water

(1) Predator

(2) With cell wall

(3) Polysaccharide rich protein layer

(4) All are marine organisms

(1) Extremely resistant

(2) Having spores which are dispersed by air currents

(3) An aggregation called as plasmodium

(4) Photoautotrophs

(1) Dinoflagellates

(2) Diatoms

(3) Euglenoids

(4) Protozoans