Heterotrophic organisms can include .......

Select the mismatched pair from the following.

Each of the following characteristics represents a Kingdom proposed by Whittaker. Arrange the following in increasing order of complexity of body organization.
$A.$ Multicellular heterotrophs with cell wall made of chitin.
$B.$ Heterotrophs with tissue/organ/organ system level of body organization.
$C.$ Prokaryotes with cell wall made of polysaccharides and amino acids.
$D.$ Eukaryotic autotrophs with tissue/organ level of body organization.
$E.$ Eukaryotes with cellular body organization.

Which of the following kingdoms consists of organisms that possess a well-defined nucleus and membrane-bound organelles?

In the three-domain system of classification,into which domains are prokaryotic and eukaryotic organisms divided?

Match the Column-$I$ with Column-$II$ and select the correct option from the codes given below:-

Column-$I$	Column-$II$
$(A)$ Chief producers in oceans	$(i)$ Slime moulds
$(B)$ Red Tides	$(ii)$ Diatoms
$(C)$ Plasmodium	$(iii)$ Euglenoids
$(D)$ Mixotrophic nutrition	$(iv)$ Dinoflagellates