Scelta multipla
Which of the following is not a characteristic of parasitic helminths?
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27. Protists
Introduction to Protists
Scelta multipla
Which of the following is not a structure used for locomotion in protists?
A
Flagella
B
Pseudopodia
C
Chloroplast
D
Cilia
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Begin by understanding the concept of locomotion in protists. Protists are a diverse group of eukaryotic microorganisms, and many of them have specialized structures for movement.
Identify the structures commonly used for locomotion in protists. These include flagella, pseudopodia, and cilia. Each of these structures has a unique mechanism for movement.
Flagella are long, whip-like structures that rotate or whip back and forth to propel the organism through its environment.
Pseudopodia are temporary, foot-like extensions of the cell membrane and cytoplasm that allow the organism to move by changing shape and flowing in the direction of movement.
Cilia are short, hair-like structures that beat in coordinated waves, allowing the organism to move or to move substances across its surface. Chloroplasts, on the other hand, are organelles involved in photosynthesis and are not used for locomotion.
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