Question

why do you think unicellular organism lack special orgen to transport​

Answer 1

Answer:

Echolocation, also called bio sonar, is a biological sonar used by several animal species. Echolocating animals emit calls out to the environment and listen to the echoes of those calls that return from various objects near them. They use these echoes to locate and identify the objects.

Answer 2

$\huge{\mathcal{\green{Heya\: Dost}}}$

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BECAUSE..

~ unicellular organism lacks special organ to transport Because they are single celled organisms having simple body structure due to which they don't need any organ to do there Life process they are in contact with environment to do metabolism.

~ They usually diffuse directly between their body tissues and the external environment.