Question

Clear selection
is a unicellular organism

Agaricus
OParamoecium​

Answer 1

ANSWER:

The organisms can be broadly classified into two groups, namely unicellular organisms and multicellular organisms depending upon the number of cells. Unicellular organisms are made up of only one single cell. Examples include Amoeba, Paramecium, yeast, bacteria. Multicellular organisms are those organisms that are made up of more than one cell. Examples include human beings, animals.

Thus, the correct answer is 'Human beings.'

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Answer 2

Answer:

Excretion is the process of removal of the waste, which was generated from the metabolic activities and production of energy, from the body of an organism. It is an essential process for all forms of life.

In unicellular organisms, since they do not have any specialized organs for the removal of waste materials, their wastes are removed directly through the cell membrane by the process of diffusion.