NEET Botany Biological Classification MCQs

Certain dinoflagellates exhibit a unique phenomenon known as 'bioluminescence'. Which of the following accurately describes the underlying mechanism of this phenomenon?

Which protist group is characterized by the presence of two flagella, one transverse and one longitudinal, situated in perpendicular grooves?

Which group of protists contributes significantly to the formation of red tides, often leading to marine animal mortality?

Which protist group is responsible for red tides?

Which of these protists has a flagellum?

The given statements describes a group of organism

I. Instead of a cell wall, they have a protein rich layer called pellicle which makes their body flexible

II. They have two flagella a short and a long one

III. They are photosynthetic in the presence of sunlight, when deprived of sunlight they behave like heterotrophs by predating on other smaller organism

Which of the following group is referred here?

Which of the following is not the locomotory organ of protozoa?

Bacterium having flagella with all over body is known as

Bacterial flagella do not show ATPase activity and 9+2 organization. These are chemically formed of

I. Noctiluca is a colourless dinoflagellates, which is an important constituent of coastal plankton of both temperate and tropical seas

II. The cellular slime moulds have the characters of both plants and animals

Which of the statements given above is/ are correct?